Heres one for you guys:

A man is flying over africa and his plane crashes. He survives and begins to try and get to civilisation. He knows his rough location and he knows that there are 2 tribes in the area. He comes across a fork in the road, a tribesman stands at the fork.

His knoledge tells him that 1 of the tribes always tells the truth and will help him to get to freedom. However the other tribe always lie and are canibals, thus will eat him.

What question does he ask the tribesman to reach salvation?

Hope that made sense lol.