1. A house painter paints numbers on all the new houses in a neighborhood from 1-100. How many times does he have to paint the digit 9? (Not a trick.)
2. It takes three days to go from A to B, but it takes four days to go from B to A. Why?
3. Explain the following true boast: "In my bedroom, the nearest lamp that I  usually keep turned on is 12 feet away from my bed. Alone in the room, without using wires, strings, or any other aids or contraptions, I can turn out the light on that lamp and get into bed before the room is dark."
4. In a certain city, 5% of all persons in town have unlisted phone numbers. If you select 100 names at random from the city's phone directory, how many of the people selected will have unlisted phone numbers?
5. How many animals of each species did Moses take aboard the ark with  him? (Note: It asks how many animals, not how many pairs.)
6. Using the words DROVES and NEWS write seven words using each letter once.

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