Answer:
I have 24 keys but cannot open any locks. Sometimes loud sometimes soft
Roast, boast, coast, post. What do you put in a toaster?
If you lose me you may cause people around you to lose me too.
I am a room that has a roof but no walls. What am I?
Die without me, never thank me. Walk right through me, never feel me. What am I?
Give it food and it will live, give it water and it will die.