Answer:
What goes up and down stairs without moving?
You throw away my outside you cook my inside. Then you eat my outside and you throw away my inside.
As a state in the USA, I am round on both sides and high in the middle. What am I?
In spring, I am gay in handsome array. In summer, more clothing I wear. When colder it grows, I fling off my clothes. In winter, quite naked appear. What am I?
I pass before the sun but make no shadow. What am I?
What did the piece of wood say when he saw the screwdriver and screws approaching?