Answer:
I break down buildings, I crumble mountains but you can't see me. What am I?
Every night I'm told what to do and each morning I do what I'm told. But I still don't escape your scold
I can be cracked made told and played. What am I?
I have hands but cannot clap
I am a precious stone, as clear as a diamond. Though you can walk on water with my power, try to keep me, and I'll vanish in an hour. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.