Answer:
I can be short and sometimes hot. When displayed, I rarely impress.
With head without hair. With mouth without tooth.
My teeth are sharp, my back is straight, to cut things up it is my fate.
What asks but never answers?
Bright as diamonds, Loud as thunder, Never still, A thing of wonder.
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.