Answer:
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.
I cost no money to use, or conscious effort to take part of. And as far as you can see, there is nothing to me. But without me, you are dead.
What's black when you get it, red when you use it, and white when you're all through with it?
I am cracked by Indiana Jones. What am I?
It's like food but water kills it. What is it?
What did the piece of wood say when he saw the screwdriver and screws approaching?