There are three houses, a red one, a blue one and a white one. If the red house is to the left of the house in the middle and the blue house is to the right of the house in the middle where is the white house?
Find a number with its letters in alphabetical order. Example: "five" has "fiv" in alphabetical order, but not "e".
A man who lives on the tenth floor takes the elevator down to the first floor every morning and goes to work. In the evening, when he comes back; on a rainy day, or if there are other people in the elevator, he goes to his floor directly. Otherwise, he goes to the seventh floor and walks up three flights of stairs to his apartment. Can you explain why?