Yo got it Mark. Jim and Gene have no knowledge of hat colors. Travis knows one hat. And as you wrote Larry knows two hats, but has no answer, so he must be seeing two diffeent colors. Therefore Travis knows he is NOT wearing white....

:-:-:-:-:-:-:-:-:-:-:-:-: (_8(-) Doh!

You are lost in the jungle and come to a Y in the trail. One way leads to sudden death and the other leads to safety. You fortunatly meet up with a native, who can answer only one question. Problem is there are two tribes, the white foot and the black foot, and this native is wearing combat boots. White feet always tell the truth, black feet always lie.

With your one question, how do you get out of the jungle, and back to safety?
In other words what is the one question you ask the native?