Answer:
What freezes after it is heated up?
What has no hands but might knock on your door, and if it does you better open up?
They come out at night without being called, and are lost in the day without being stolen. What are they?
It's what light turns into in the night
What has one head, one foot, and four legs?
What did the piece of wood say when he saw the screwdriver and screws approaching?