Answer:
There is someone, and there is always another, for without the other, there wouldn't be one
who do you think you know but sometimes you don't
What is long and slim, works in light. Has but one eye, and an awful bite?
What has a bottom right at the top?
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.
What did the piece of wood say when he saw the screwdriver and screws approaching?