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?
If you lose me, you may cause people around you to lose me too. What am I?
It's in your hand though you can not feel it. Only you and time can reveal it.
What building has the most stories?
I break down buildings, I crumble mountains but you can't see me. What am I?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.