Answer:
If you have it, you want to share it. If you share it, you don't have it.
A house full, a yard full, a chimney full, no one can get a spoonful.
Look into my face and I'm everybody. Scratch my back and I'm nobody.
A man calls his dog from the opposite side of the river. The dog crosses the river without getting wet, and without using a bridge or boat. How?
A beacon from home to guide your way. It can be a lifesaver on a stormy day. What is it?
What did the piece of wood say when he saw the screwdriver and screws approaching?