Trick brain teasers appear difficult at first, but they have a trick that makes them really easy.
You are sitting at a table with three boxes on it. One of the boxes has a chocolate bar inside of it, and your goal is to figure out which one it is. There is a man on the other side of the table who knows which box the chocolate is in, and you can ask him one yes or no question. You must ask him one and only one question, and it must be relevant to which box contains the chocolate. How do you figure out for sure which box the chocolate is in?
Indicate one box and ask, "Is the chocolate in this box?" If he says yes, you've achieved your goal. If he says no, open the other two boxes and look inside.
Aug 12, 2011
|Not sure how much sense that makes. Why not just skip the question and open all 3?|
Aug 17, 2011
|Wolfpack, it's not my teaser, but it does say "you must" ask the question. |
Aug 23, 2011
|lol i agree with you wolf |
Aug 27, 2011
|I would have asked "Which box is the chocolate under?" It didn't 'have' to be a yes or no, it was just allowed to be.|
Oct 01, 2011
|Another way would be to indicate two boxes and ask that question.|
Oct 16, 2011
|If you were me, I would do this :|
Since only one box contain chocolate, does the other two boxes contain anything?
I would shake and find out which box does contain the chocolate.
Oct 24, 2011
|This teaser doesn't exactly make much sense...|
Oct 27, 2011
|I have to agree with GreenApples. How was this a brain teaser?|
Nov 04, 2011
|i agree with you wolfpack |
Nov 18, 2011
|It does have to be a yes or no question he said that. But I agree with Wolf and this teaser is lame. Incidentally, my question would be this:|
"Please say yes for box 1, no for box 2 and don't say anything for box 3". The trick never said he had to answer your yes or no question and assuming he has to be honest, then I get the chocolate!
Feb 06, 2012
|Couldn't you just point to a box then say if its this box say yes, if its this box say no, and if it's this box don't respond|
Mar 10, 2012
|way too easy|
Apr 23, 2012
|JUIJ13 i agree with and wolf |
Jun 12, 2012
|I would ask, is it dark chocolate? If yes, i would open all 3 and look inside. if no, I wouldn't do it cause dark chocolate is the only good kind |
Jun 16, 2012
|Write 1, 2, 3 on each of the boxes, and then tell the man I am thinking of either 1.5 or 2.5. Is the chocolate in the box that has a number greater than mine? If he says yes, it is in box 3. If he says no, it is in box 1. If he can't answer, it's in box 2.|
this is also on the teasers without answers page i also agree with just open the boxes
Feb 03, 2013
|as dangerouspie 101 said above, this is on the teasers without answers forum. There are a lot of solutions posted there, but I like HarryPutter's example the best: Kidnap the guy and leave him with no food or water except for the candy bar, and see which box he reaches for. Although this isn't technically a valid answer, as it doesn't require asking a question, I still like it.|
Apr 14, 2013
|Or another way is:|
Do one of these two boxes contain the
If he says "no"
the remaining box contains the chocolate.
If he says "YES"
there's a 50/50 chance.
Jan 01, 2015
|The question doesn't say that the man will tell the truth, so you'll have to open all three anyway.|
This puzzle is rather dumb.
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