Braingle Lite

Einstein's Riddle

Submitted By:link2440
Fun:*** (3.06)
Difficulty:*** (3.04)

Einstein's Riddle:
Einstein wrote the following riddle. He said that 98% of the world could not solve it. But several NIEHS scientists were able to solve it, and they said it's not all that hard if you pay attention and are very patient. Give it a try:

There are 5 houses in 5 different colors in a row. In each house lives a person with a different nationality. The 5 owners drink a certain type of beverage, smoke a certain brand of cigar, and keep a certain pet. No owners have the same pet, smoke the same brand of cigar, or drink the same beverage. Other facts:
1. The Brit lives in the red house.
2. The Swede keeps dogs as pets.
3. The Dane drinks tea.
4. The green house is on the immediate left of the white house.
5. The green house's owner drinks coffee.
6. The owner who smokes Pall Mall rears birds.
7. The owner of the yellow house smokes Dunhill.
8. The owner living in the center house drinks milk.
9. The Norwegian lives in the first house.
10. The owner who smokes Blends lives next to the one who keeps cats.
11. The owner who keeps the horse lives next to the one who smokes Dunhill.
12. The owner who smokes Bluemasters drinks beer.
13. The German smokes Prince.
14. The Norwegian lives next to the blue house.
15. The owner who smokes Blends lives next to the one who drinks water.

The question is: WHO OWNS THE FISH?

Show Hint Show Answer

Comments on this teaser

Posted by mmkeebler10/23/01
It's extremely difficult when dealing with a two year old and a six month old at the same time while trying to solve this "Brain Teaser"

Posted by Sinead01/27/02
Cool Man!!!!

Posted by KevThaDrinkKilla02/09/02
Took about a half hour.. great puzzle, I got it

Posted by mishiko02/13/02
I got it but it was fun

Posted by Josie02/13/02
It's been a while since I've done a logic puzzle and really enjoyed the challenge. When I got the "one" clue that lead to everything else I was ecstatic!

Posted by zzzzzzzzzz02/22/02
I just finished the puzzle...It was really easy if you know how to work it!

Posted by iluvcats02/22/02
That wuz VERY HARD but i could figure it out

Posted by 204_BLaZe_4102/27/02
i figured that out so easily. my school had the grade 8s do it. and me and like 5 other people figured it out. John

Posted by lil_thugsta03/01/02
YAHH.. im part of the 2% of people who figured it out...YAH JAMES!!!! TOKAR

Posted by cathalmccabe03/11/02
Are you supposed to do this mentally? I did it in a couple of minutes just writing it down

Posted by beckyatl03/14/02
After taking in the given information and using my superior CIA intellect, I was able to arrive at the correct answer in 37 seconds . . . by taking a wild stab in the dark and exclaiming, "IT was the German dude!" hahaha Cool riddle!

Posted by Quinnomatic03/17/02
Bloody well hard!

Posted by jeanray03/19/02
Very good! Solved it with maths...

Posted by rose_rox03/22/02
I thought one of Einstein's riddles would be harder than that! Excellent submission though!

Posted by rohddawg03/26/02

Posted by emilymonkeymaia04/12/02
It toke me about 1 hour! I was really frastrated!

Posted by mankatozx04/13/02
Got this right away... Einstein must have an idiot.

Posted by spysniper2104/13/02
cool, did it in about 20 minutes, nice

Posted by Einat1604/29/02
Hey you guys!!! I did it!!! It took me 50 minutes but I solved it!!! yey!!!

Posted by Eowyn05/10/02
This was fun! And now I am one of those 2% that are able to solve the riddle! I feel smart... :) Thanks for submitting this phenomenal riddle, and please submit more!

Posted by QtistLilShorTy05/19/02
I love puzzles such as this. I did however figure it out like many others, although i am willing to bet several of you how "figured it out" just guessed or lied when saying that. I took me around 25 or 30 minutes, but it was quite difficult. I am very impressed and please, submit more!

Posted by O_wise_one05/19/02
Einstein was a smart man, he once said, "The hardest thing in the world to understand is income tax"

Posted by mavericklotus06/06/02
Yeah, it also took me about 20 mins, writing it down too. Too true, the clues are all there. Good fun!

Posted by tedi06/07/02
It is really easy if you know how to solve it, I finish this riddle for 1 hour, The methode I Used is Matrix 5 x 5 it is really fun

Posted by sparkle06/07/02
I agree with Gill - it's easy if you know how to go about solving it!

Posted by SkEwL_gUrl07/26/02
FYI : isaw this one on another site that says apparently Einstin said that 98% of people in the world can't figure this one out. I guess I'm part of the other 2% since i figured it out in five minutes!

Posted by gladiator144207/28/02
I'm part of the 2% that got it!

Posted by Stargirl07/30/02
that was one of the hardest riddles i have ever seen. it took me 45 minutes to complete it. guess i'm not a logical person

Posted by kidkilowatt08/05/02
Wow by the end of this logic puzzle. My head was to warn out to actually remeber when i started. Somewhere from 40-60 minutes. But none the less this one was worth the strain!:-)

Posted by jriley177908/08/02
Took me about ten minutes and my method involved the use of scissors. I think Einstein thought it was more difficult than it is.

Posted by naveen_the_great08/20/02
took me about 45 mins but was real fun.

Posted by pemalova08/21/02
This was a good teaser, but it was impossible not to get. The best teasers don't allow process of elimination. This one, you couldn't be that proud of getting.

Posted by mila08/22/02
A friend's teacher had given this to all the kids in the class. I had dropped out of school, but always loved this kind of thing. I remember solving it, but never knew the true answer. I tried it all over again this time, and did it in an hour. Made me happy to know I'm not a complete idiot, even having dropped out of high school after two freshman years. Took me an hour... I'm happy I got it at all!

Posted by stormcloud9909/17/02
That teaser actually made me think! A Although it was rather easy, it was fun.

Posted by floating_dreamer09/22/02
Very nice. Took a bit of notes to do this but I got it finally.

Posted by jucy-lu10/18/02
i did this before with some of my work mates. i found the teaser on the internet age's ago!!!!!!!!

Posted by bluelightnign10/20/02
The riddle wasn't as hard as einstein said it was. If you keep on guessing and checking you'll eventually find the answer. I got the answer in about 20 minutes by using a diagram.

Posted by stonemug11/08/02
Took me about 30 minutes to get it, but very good one.

Posted by golfer13200302/11/03
Hey nice riddle pretty tough but still got it after puttin it all together.

Posted by nickadeemus07/14/03
I had to do something very similiar for this in my math class about a month ago. This one took me about 10 minutes.

Posted by Gerd08/13/03
Do you really believe, Einstein is the creator of this riddle? And do you really believe, he said that nonsens about the 2%?

Posted by taniapereira9908/23/03
Agreed that this was an easy "logic" puzzle... did these kind of puzzles in grade 6. They are fun still tho!

Posted by baseball09/06/03
its hard but got it and loved it

Posted by xiaobaby09/16/03
hey i can't get it cus i haven't that much time to figure it out.. can those people who got it in 5 minutes explain detailly the shortcut method? i must be one of those 2% who CAN'T get it right judging by so many who can so quickly

Posted by snoopdogg03/13/04
5 minutes i'm wondering how u guys skipped all the matching and was able to get the answer 5 minutes!!! it took me more than five minutes to make the grid for this :o :o :o

Posted by VaLeRiY03/13/04
i have something to say to all of you "genii" out there. first, when Einstein made this riddle, 98% of the people could not solve it. today people are alot smarter then they were when he lived (1879-1955). second, many of you are not 2% who can solve it, but 25% who can guess it. and finally, most of the people who are out of 98% that cannot solve it will not be on this site. 8)

Posted by froghop83304/01/04
Simple, but time consuming...

Posted by thegermangemini04/30/04
Wicked awesome! Took me like 45 minutes, give or take, and consumed me at work, but I got it! Yay!

Posted by dieblondboff05/04/04
Wow, thats the longest i've ever spent on a teaser, i usually give up & look at the answer but i just had 2 try this one. I got it eventually, after several pieces of paper later, kept thinking i'd solved it & then finding a bit that didnt add up. All the people saying they got it quickly probably didnt, u all just guessed the answer or you would have taken longer. Well done to all you who actually got it! top 2% people!!!

Posted by bballgurl07/14/04
This one's going on my list!

Posted by Punk_Rocker08/01/04
I saw this on another site, and i absolutly LOVE these problems. It took me a while to do it, but i eventualy got it right! Its great! :D

Posted by JmBannana08/18/04
Great teaser! Took me about 25 mins to solve :D

Posted by Taya09/08/04
i think the reason he said only 2% could solve it, is because not many people have the patience to actaully work it out, its not so much the difficulty which he was talkin about, by including so many objects as distractions, he discouraged many people from even attempting it. Hence, the 98% of people who couldnt solve it! im 13 by the way :D

Posted by RohitMayor11/11/04
I got it, excellent riddle.

Posted by pianofox11/17/04
I gave up in like 10 seconds. Oh, and mankatozx, Einstein was not an idiot!!!!!!!!! :evil: Thanks for subbmitting! :D

Posted by Boocho11/21/04
You can't say that there isn't enough information because the question is who owns the fish... The fish is owned by the person who last doesn't have a pet... Which in common sense can be found out without using a grid, all you need is 5 minutes of hard mind-boggling thinking... The rest of the information besides who owns the fish is of no purpose, and the reason only 2% of people get the answer, is because they lack attention to detailed questions... If you solved it and found out each person's things, then your answer is wrong... In summary... Read, it helps! :-D

Posted by Nicky10111/23/04
I looked at it. Knew I wouldn't get it. Guessed the right answer! 8)

Posted by follydog12/19/04
I first encountered this problem around 1966 and have loved this type of problem ever since. :D

Posted by I_am_the_Omega01/02/05
Did this a while ago... took me about a half hour... but then, i'm the most unorganized person ever. Einstein was wrong, or this is a myth.. because probably closer to 50% of people could do it. Really, though, I knew it was the German from the start. Why? Well, he was German, wasn't he? :P

Posted by adkonz01/05/05
haha, ya, i used ALOT of paper too. It took me awhile to solve, but I did it!!!!!! I feel smart. lol. anybody know of others like this??

Posted by cliff01/24/05
I attempted this riddle a while ago and couldn\'t solve it. Now, however, after trying it again, I found it fairly simple. Overall its an incredibly entertaining riddle. Probably my favorite... :wink:

Posted by stormtrooper02/07/05
comment too long... :o

Posted by Gandalf02/14/05
wow for being hard that was eaasy took me less than 10 minutes

Posted by jacintan02/21/05
it is cool :D :D ... Hard... :-? :-? Eye bogglingly Amazing! :o :o

Posted by chuckelect02/22/05
GREAT teaser. got it in about 15 min. right to the favorites!

Posted by OD10189002/23/05
Shouldn't this one be in the logic-grid category?

Posted by ampam9703/06/05
Wow!!!! I got it in like 15 minutes! I'm so proud of my self! 8)

Posted by y4n403/18/05
cool one i was confused at first but after i gpt the first clue, wow every thing went easy

Posted by zonahobo05/02/05
:D Yep the 5X5 grid is the only way I could organize and track the facts. Anyone doing this in their head should be out making money somewhere and not playing games .. or maybe making up games like Einstein did .. Of course all those guys are dead now from smoking and their pets have died and one of those TV guys bought up the houses and made a million dollars instead of doing grid problems in their head! ha ha liked it!.. back to the zone ..

Posted by BlaineTheTrain05/03/05
That was great...YAAAAYYY!!! :-?

Posted by darthforman05/11/05
I am the ghost of Einstein, You are all wrong. The answer is... I am not Einstein. I'm bored. :D

Posted by JCDuncan05/31/05
The hint is right, all you have to do is remain patient and you will get it. Perhaps Einstein was making a coment on the character of 98% of the people in the world, and what real intellegence is. :D :D :D

Posted by darthforman06/06/05

Posted by ragsdaleam06/06/05
... one of the "more harder" puzzles. Somebody's definitely not Einstein.

Posted by Kukmiester07/06/05
to much for me... I'm not that patient... :-?

Posted by soccercow1011/13/05
Gave up in 45 minutes.But then right when i clicked the answer link i said"i bet it was the German".lol same here not really that patient. :evil: :x :cry: :lol: :oops: :roll:

Posted by Fame_Kraze11/20/05
still confused :lol: :D :) :roll: :cry: :x :( :evil:

Posted by legodude11/27/05
It took me about 45 minutes scattered throughout the day to solve this using a logic grid. It was pretty simple, though took a straining effort. I had guessed all along, however , that it was the German because of Einstein's nationality. As I solved it, I gained insight into how to use logic grids. I was very worried about whether the houses were numbered from left to right or the opposite, and I wondered if that was a trick. THIS TEASER NEEDS TO BE IN THE LOGIC GRID CATEGORY!!! :-?

Posted by usaswim11/30/05
I thought about 2% of the world could solve this?! :roll: About half of everybody who wrote a comment solved it! :lol: :lol: :lol: :roll:

Posted by SPUTNIK202/01/06
well I guess I', the loser of the bunch :( I got it wrong after I racked me nrain for 30 minutes :x (It hurts!! It hurts!!)

Posted by free_bird03/02/06
I am in 6th grade and i got it in 15 min. It was easy if you used a diagram. :D

Posted by solarsistim32103/05/06
YES! I man doh, i didn't get it. Almost though. :lol:

Posted by EdoVision06/05/06
Ah good stuff i loved it! Keep em comming, Does a brain good =)

Posted by Blackbelt9206/07/06
Very good and challenging.

Posted by doctorspriggs08/21/06
did it in about 35 minutes

Posted by tintiniscool08/27/06
:D Yay! I am thirteen and I got this one not a very long time period!!! :D

Posted by Stormcrafter11/07/06
It's not very hard, when I first did it it took about 15 minutes. If you know how to do logic grids, then it is fairly easy :)

Posted by senther712/30/06
This didint take very long. The key to do this teaser very quick and easy is to use a logic-grid. Overall, long,ez,and fun! 8) 8) 8)

Posted by winbob42303/30/07
I did this in math class

Posted by Trickster199205/02/07
damn. i couldn't get it... I obviously not in the 2 percent. Of course, when Einstein said only 98 percent of people could figure it out he was talking about the people of his time. Also, 2 percent is actually a considerably large amount of people, considering there's about 7 billion people in the world.

Posted by brainglewashed06/13/07
I am one of the two percent took me about a half-hour :)

Posted by Imdotnrunk08/31/07
:D I am also take part in the 2% of the population who could figure it out. It took me about 45 mins but I finally got it. Very good Riddle. Looking foreward to more. Thank you :P

Posted by Imdotnrunk08/31/07
:D I also take part in the 2% of the population who could figure it out. It took me about 45 mins but I finally got it. Very good Riddle. Looking foreward to more. Thank you :P

Posted by GABALLA0608/31/07 said in the riddle that they were in a row. These 5 houses couldn't have possibly been both in a circle and in a row. Also, If it was circular street, you would never know which house was the first one...not that it quite matters in a circle. And if you would check with your answer and the clues, it won't make sense. I found this riddle pretty easy and solved it in about 10 minutes. it was pretty fun... :D

Posted by 4demo11/03/07
I guess I'm in the 98%. :oops: Difficult but fun! :D

Posted by sioga01/10/08
i think people misunderstood Einstein,the correct statement is we only need 2% of our brain to solve this riddle.and the 2% is only for fingers and eyes functions!!no need to think at all!!

Posted by cm_mcginty08/22/08
It is often called "Einstein's Puzzle" or "Einstein's Riddle" because it is said to have been invented by Albert Einstein as a boy. Some claim that Einstein said "only 2 percent of the world's population can solve it". It is also sometimes attributed to Lewis Carroll. However, there is no known evidence for Einstein's or Carroll's authorship. Incidentally, we can all get good at doing logic puzzles, doesn't make you a genius, it means you've practised. Having a high IQ doesn't make you clever, it makes you good at IQ tests although IQ tests are relatively comprehensive so more often than not the two will correlate, if you've done lots of logic puzzles before, you're going to know how to approach them and how to think it through, if you haven't, the likelyhood is that this will be much trickier for you. This took me just under half an hour, very enjoyable.

Posted by cm_mcginty08/22/08
sorry but i've just noticed alaois' comment and it really annoyed me. Einstein, even as a boy, wouldn't have been stupid enough as to think one in 50 people were clever enough to work that out in their head. Everyone who's done it on here obviously enjoys brainteasers and has had the practise to make it easier. But as a general population, the majority wouldn't be able to solve the puzzle full stop. The idea that out of the 6 000 000 000 people on the planet, call it 3 000 000 000 adults (on a very bad day), 60 000 000 could solve this thing in their head!? is plainly just stupid... do you not realise how large a percentage that actually is when we're dealing with something like this. 2% of people in Britain go on to study further maths at AS level, 1% continue to A2, of that 1% 25% get an A, so 0.25% of people get an A in further maths, i recently received my A. As i've said above, that took me about half an hour with a pen and paper, so how could possibly make such a stupid claim... there are probably a ridiculously small handful of people who could solve that in their head with a confident answer, unfortunately it's impossible to find out how many because you've got a 20% chance of getting the right answer anyway.

Posted by augustbaby11/15/08
well it couldnt be a circular road because he said in a row. a row is a line straight across. but anyway i loved the teaser. it was very easy. that two percent stuff is kinda wrong :-?

Posted by Cherubrock7911/25/08
I don't know why but during the middle of my solving i thought it was going to be the german....and it was....hmmmm

Posted by thecools02/18/09
I got a different answer The question never told us that the fifth guy(i.e. the German guy) has the fish. The fact that given by the question only said that they have 5 different kinds of pets, they never said anything about the fish. Therefore the answer is not the German guy but could be anyone else because the German can have a tiger or crocodile or anything for a pet(Although he could have a fish but we can't be certain about that).

Posted by ewand9705/12/09
Me, my mom, and my brother all sat down and did it in about 20 min,:D but it was hard.

Posted by awishfulthinker06/02/09
Very good riddle, took about 30 minutes for me. Keep them coming. I have 4 gripes which involve comments not the riddle itself. 1. Everyone who is stating that the German could own any pet because it is not specifically stating that one of the five people own a fish, need to learn what the word "infer" means. If you actually figured out the puzzle and everyone owned the other four pets, then the German had to own the fish, because thats what the riddle is asking. Stop trying to sound smart because you have a problem with the wording. I do not believe you even solved the riddle or else you would just be happy you figured it out. 2. As far as the whole 98% of the population not figuring this out, no one (not even einstein himself) could know the exact number. He could only know a percentage of a sample group, which still wouldn't be accurate to the rest of the world. I also believe everyone overestimates the intellect of people in this world... I would still say there is a large percentage who either couldn't figure it out or do not have the attention span to do so. 3. If you solved this in under 5 minutes, you are either lying or incredibly smart. To just read and re-read clues then write down your work would take way over 5 minutes. 4. Why is it spelled "practise" in some countries and "practice" in the United States? Maybe thats a riddle in itself! Thanks if you've listen to my complaining/reasoning!

Posted by annonimus06/14/09
It took me three hours, but i finally proved that i was in the top 2% of the people who can figure this puzzle out. The hardest part of this puzzle is making sure you keep your train of thought. :D

Posted by Insiderrr12/19/09
Took me about 30mins to solve! Not nearly as difficult as it looks. You just have to write your clues out clearly.

Posted by mist_rock05/10/11
there are so many in 2 % ..even am in one of them... :D took some time..bat that was relly very gud..

Posted by Skybet11/01/11
I'm usually rubbish at these but I got it in about 15mins, veryy happy with myself right now! Great teaser :D

Posted by Punk_Rocker11/17/11
This was the teaser that got me interested in puzzles about seven years ago. It was so hard then, and it took me forever! I decided to revisit it and knocked it out in like 15 minutes. I don't think I'm any smarter than I was then...I'm just better at making charts. ;)

Posted by firefox9902/23/12
Easy easy, did it before.

Posted by Zac013002/25/13
I am 16 and I figured out this riddle in 42 minutes I got the answer that the German owns the green house with a fish,smokes prince and drinks coffee

Posted by stephenthusiast05/13/13
15 minutes is all I needed..hahaha SO NICE!!!! :D :D :D :D :D :D :D :D :D :D so proud to be part of the 2%!!!

Posted by stephenthusiast05/13/13
For those who thinks the Dane owns the fish... Here's a solution: http:// /einstein / einsteins -riddle - solution - explained/ NO SPACE!

Posted by ThinkingLikeMe01/06/15
I thought the riddle was quite easy, I solved it and i timed it 8 mins give or take a few seconds. I even made an account to post this, but I get why some people don't get it. You just have to think in that way I guess. I also know that just because you can solve this, it doesn't make you a Genius. I guess someone that solved it in a matter of seconds (with little to no knowledge of riddles) could be classified as the top 2 %, but only because people of today are much more intelligent then in Einsteins time. 8)

Posted by arma09/27/15
This should be transferred to logic-grid

Posted by BatmanMahfood01/31/17
SUPER FUN!!!! luved it! it tuke me ubout 10 minutes two due it. i finished it and then shared it with all my stretch friends and only half of them got it right :lol: :lol: THANKS FOR THE LAUGHS

Posted by Hans571003/11/17
I saw this one on YouTube. Ted Ed Riddles showcased this. :lol:

Posted by Hans571003/11/17
I saw this one on YouTube. Ted Ed Riddles showcased this. :lol:

Posted by Hans571003/11/17
1. Oops 🙊 accidentally duplicated the entire comment :oops: 2. I don't think it's nice to say that kind of stuff Awishfulthinker.

Posted by Hans571003/11/17
You are insulting women.

Posted by general04/22/17
when you say norweigian is the first. is it first from left to right or from right to left


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