Answer:
I must be broken before you can use me. What am I?
I run through hills. I veer around mountains. I leap over rivers. And crawl through the forests. Step out your door to find me.
The more you work the more I'll eat.You keep me full I'll keep you neat.
I am an instrument capable of making numerous sound but cannot be touched or seen.
People see through me, but none pass through without killing me. I can be anywhere, and can be seen double or single. What am I?
I am a rock group with four members. All dead one was assassinated.