You are at one end of a hall blindfolded. At the other end are Alex and Bert. You are allowed to ask any yes or no questions you want, but only one of them will respond. They are standing next to each other and their voices are identical, so you have no way of telling which one responded by sound alone.

Using as few questions as possible, find out the type of each Alex and Bert and who answered your last question.

(In reply to re: another try by Penny)

Does it say anywhere there is exactly one liar and one knight? Couldn't both be liars and both be knights?

Posted by Gamer on 2003-12-30 17:15:11