Answer:
What has a bottom at the top?
I have wheels and flies yet I am not an aircraft.
The eight of us go forth not back to protect our king from a foe's attack. What are we?
I can fly but I have no wings. I can cry but I have no eyes. Wherever I go, darkness follows me. What am I?
I can fall off a building and live, but in water I will die. What am I?
What did the piece of wood say when he saw the screwdriver and screws approaching?