Answer:
How do you blink twice without blinking twice?
What moves and touches water but doesn't get wet?
Two fathers and two sons are in a car, yet there are only three people in the car. How is this possible?
There are 20 birds in a tree. A man comes and shoots one of the birds. How many birds are left?
How do you discover something that does not exist?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?