Answer:
I always murmur but never talk. Always run but never walk. I have a bed but never sleep, have a mouth but never speak. What am I?
Break me and I am better immediately set and harder to be broken again.
Whoever makes it tells it not. Whoever takes it knows it not. Whoever knows it wants it not
I belong to everyone. Sometimes make you happy, sometimes make you sad. I will never end until the day you do. What am I?
I must be broken before you can use me.
I break away from my pack. I create holes in my victims. I can travel for miles and then disappear. I am part of a dying breed. What am I?