Brain Teasers
Liars
Sally lies on Wednesday, Thursday, Friday, Saturday and Sunday; but tells the truth on all other days. John lies on Sunday, Monday and Tuesday; but tells the truth on all other days.
One day Sally and John had lunch together. One exclaimed 'I lied yesterday'.
The other replied 'Me too'.
ON WHICH DAY DID THEY HAVE LUNCH TOGETHER?
One day Sally and John had lunch together. One exclaimed 'I lied yesterday'.
The other replied 'Me too'.
ON WHICH DAY DID THEY HAVE LUNCH TOGETHER?
Hint
A table can be useful...Answer
Wednesday- John lied on Tuesday and is telling her the truth, because he tells the truth on Wednesdays.
- Sally is lying to John as she lies on Wednesday, but told the truth on Tuesday.
Hide Hint Show Hint Hide Answer Show Answer
What Next?
View a Similar Brain Teaser...
If you become a registered user you can vote on this brain teaser, keep track of which ones you have seen, and even make your own.
Solve a Puzzle
Comments
It's a good idea to start with teasers like this, to make your first steps in logic problems. And, of course, it's a nice teaser.
Great puzzle!
Thats a real good 1!!!
U R a good creator
U R a good creator
Neat puzzle! Logic is the best
Wednesday is not the only correct solution. Monday will work too.
You are WRONG Valeriy.John lies on Monday, but if he says 'I lied Yesterday', HE IS THEN TELLING THE TRUTH.
MONDAY IS NOT AN ANSWER
I would appreciate it if you do not INCORRECTLY correct teasers that are fine. Please pm your problem and ill help you understand...AXTON
MONDAY IS NOT AN ANSWER
I would appreciate it if you do not INCORRECTLY correct teasers that are fine. Please pm your problem and ill help you understand...AXTON
Rather easy.
Sep 17, 2004
sweet n easy
Good but very easy!
Q_mark says "great teaser"
I lie on Wednesday's. I should of known it right away. (I got it eventually).
Easy, but good.
To post a comment, please create an account and sign in.
Follow Braingle!