Answer:
How could all of your cousins have an aunt who is not your aunt?
Twelve pears hanging high, twelve men passing by. Each took a pear and left eleven hanging there. How can this be?
What can you hold in your right hand but never in your left hand?
In 1990, a person is 15 years old. In 1995 that same person is 10 years old. How is this possible?
10 fish are in a tank. 2 Drown, 4 Swim away, and 3 Die. How many are left?
Why was the cook arrested?