You have 3 people with you. You know that one always tells the truth, and one always tells lies, and the other one strictly alternates telling lies and truths.

You are going to serve dinner, but ask who likes strawberries, and who doesn't. Their answers are as follows:

A: C never has told a lie.
I like strawberries.

B: A has never told the truth
I don't like strawberries

C: I always lie.
I don't like strawberries.

Who likes strawberries, and who doesn't?

no one likes strawberries. C is obviously the alternater because his first statement would be a paradox if he wasn't. C's first statement then becomes a lie so his second is a truth. C doesn't like strawberries. A said that C never lies. This being a lie, A has to be the liar. A also doesn't like strawberries. B must then be the truth teller. B doesn't like strawberries. no one likes strawberries.

Posted by Jon on 2003-04-10 09:52:00