You are stranded in a land with only two big cities. Knightville is populated only by Knights, and Liarville - only by liars. Naturally, you wish to get to Knightville, where you hope to find help.

During your travels, you meet a resident of these parts, who must have come from one of the two cities, but you do not know which.

With one simple question, how do you find out what direction Knightville lies in?

This may be ludicrous, but if there are only two directions, you could ask him which way he goes home. If he is a liar, then he'll point to Knightville. If he is a knight he'll tell you how to get to knightville. There has to be a better answer, because the liar would send you to nowhere land.

Posted by Lawrence on 2003-08-31 23:47:22