Answer:
No legs have I to dance, no lungs have I to breathe. No life have I to live or die, and yet I do all three. What am I?
The shorter I am, the bigger I am. What am I?
If I drink I die. If I eat I am fine. What am I?
When you take away the whole from me, there is always some left. What am I?
I always run but never walk often murmur but never talk have a bed but never sleep has a mouth but never eat.
Give it food and it will live, give it water and it will die.