Problem One: Nefarious Liars
Oct 19th, 2006 by tony
Ok, I didn’t have time to post any problems yesterday, so I’ll make them up today. This first one is really similar to another problem I posted a long time ago, but it’s really a setup for the next problem.
You are an adventurer exploring the jungles of Amazon, and you encounter two barbaric tribes - the Liari and Truthwi. The Truthwi always tell the truth, but the Liari always tell lies. As you trot along a little used dirt path, you find two tribesmen, who seemed to be from the two opposing tribes. But you don’t know who is from which tribe. How can you determine the tribes of the two tribesmen by asking only one question?
Update: Solutions are posted!