Answer:
I'm light as a feather, yet the strongest man can't hold me for more than 5 minutes.
If a man carried my burden, he would break his back. I am not rich, but leave silver in my track.
Late afternoons I often bathe. I'll soak in water piping hot. My essence goes through. My see through clothes. Used up am I - I've gone to pot.
I grow where no flower grows, where no light touches the walls, up or down, that I don't care, was here before people were.
What turns everything around but does not move?
What covers its face with its hands, speaks no language, yet most known what it's saying?