Answer:
The person who makes it has no need for it. The person who purchases it does not use it. The person who does use it does not know he or she is. What is it?
The barber of New York shave all men in New York. No man living in New York is allowed to shave himself. The barber of Nee York lives in New York. Who shaves the barber ?
What number has all letters in alphabetical order when spelled out?
Pirates put their booty in it.
What flies without wings?
What did the piece of wood say when he saw the screwdriver and screws approaching?