Answer:
I bind it and it walks. I loose it and it stops.
You need a key to receive an answer from me. The answer you'll find is straight from your mind. What is it?
We travel much, yet prisoners are, and close confined to boot. Yet with any horse, we will keep the pace, and will always go on foot.
Long and slinky like a trout, never sings till it's guts come out.
A hill full, a hole full, yet you cannot catch a bowl full.
What is so fragile that saying its name breaks it?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?