Answer:
You hold my tail while I fish for you. What am I?
*forward* *backwards*is what I do all day. I come in all different shapes and sizes. I can be scary and I can calm you down.
I have six faces but not even one body connected 21 eyes in total but cannot see.
What can run but never walks licks but never talks has a bed but never sleeps has a mouth but never eats?
I climb higher as I get hotter. I can never escape from my crystal cage.
Give it food and it will live, give it water and it will die.