Answer:
I have four legs but no tail. Usually I am heard only at night.
What goes with a car, comes with a car, is no use to a car but a car cannot move without it?
I heard of a wonder, of words moth-eaten. That is a strange thing, I thought, weird. That a man's song be swallowed by a worm. His blinded sentences, his bedside stand-by rustled in the night - and the robber-guest. Not one wit the wiser. For the words he had mumbled.
My life can be measured in hours. I serve by being devoured. Thin, I am quick. Fat, I am slow. Wind is my foe.
My head bobs lazily in the sun. You think I'm cute. For my face is yellow my hair is white and my body is green.
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.