Answer:
I have 24 keys but cannot open any locks. Sometimes loud, sometimes soft. What am I?
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?
I can run but not walk. Wherever I go, thought follows close behind. What am I?
I never was but always will be. No one ever saw me but everyone knows I exist. I give people the motivation to better themselves every day. What am I?
What belongs to you but others use it more than you do?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?