Answer:
What goes up the hill and down the hill, And spite of all, yet stand still?
How could all of your cousins have an aunt who is not your aunt?
I have two coins, one is marked George I and one is marked George IV. One is genuine but one is a forgery. Which is the forgery?
When does 4 - 1 = 5 ?
There is a dog on one side of a lake and a woman on the other. The woman calls the dog over and when he gets there he is not wet at all. How is this possible?
What never gets any wetter no matter how hard it rains?