Answer:
I go in hard come out soft. Blow me hard and I’ll make a pop.
Bright as diamonds, loud as thunder, never still, a thing of wonder. What am I?
I am lighter than air, but a hundred people cannot lift me. Careful, I am fragile. What am I?
I have 24 keys but cannot open any locks. Sometimes loud sometimes soft
If I have it I don't share it. If I share it I don't have it. What is it?
No matter how little or how much you use me, you change me every month.