Answer:
What wears a coat in the winter and pants in the summer?
What has a big mouth, yet never speaks?
What can answer in any language? What can speak without a mouth? What can sing without an ear?
The more holes you cover the lower it goes.
Runs smoother than any rhyme, loves to fall but cannot climb.
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.