You are coming back from a vacation. You want to go to village A. People from Village A always tell the truth, never lie. People from Village B always lie and never tell the truth. So, you come across two paths one leads to village A and the other leads to village B. You don't know which is which. A person comes from behind you. You don't know whether he is from village A or B. What can you ask him to choose the right path to village A?
This is an unusual paragraph. I'm curious how quickly you can find out what is so unusual about it. It looks so plain you would think nothing was wrong with it. In fact, nothing is wrong with it! It is unusual though. Study it, and think about it, but you still may not find anything odd. But if you work at it a bit, you might find out.