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Bob comes to a fork in the road which leads to two villages. In one village the people always tell lies, and in the other village the people always tell the truth. Bob needs to conduct business in the village where everyone tells the truth. A man from one of the villages is standing in the middle of the fork, but there is no indication of which village he is from. Bob approaches the man and asks him one question. From the villager's answer, he knows which road to follow. What did Bob ask?
What is "What village is your village?"
(A liar will point to the truth village and a honest man will point to the truthful village)