Answer:
If you break me, I'll not stop working. If you can touch me, my work is done. What am I?
I run up and down the stairs without moving. What am I?
I have a mouth on my head and eat everything.
I give people a huge fright, but at the end I'm sweet. I normally celebrate at night, when there's less heat. What am I?
I tremble at each breath of air and yet can heaviest burdens bear.
Give it food and it will live, give it water and it will die.