Answer:
What has four wings but cannot fly and uses the wind but does not know why?
What can you put in a barrel to make it lighter?
The man who made it didn't need it. The man who bought it didn't use it. The man who used it didn't want it.
What has one eye but cannot see?
Covered in stone and sun. It's home to many but also none. What is it?
What did the piece of wood say when he saw the screwdriver and screws approaching?