Answer:
How is it possible to always find what your looking for in the last place you look?
If there are three apples and you take away two, how many do you have?
Six glasses are in a row. The first three are filled with milk and the last three are empty. By moving only one glass, can you arrange them so that the full and the empty glasses alternate?
What always comes into a house through the keyhole?
How do you blink twice without blinking twice?
What did the piece of wood say when he saw the screwdriver and screws approaching?