Answer:
A muttered rumble was heard from the pen, and I, in my walking stopped to look in. What was this I saw? A massive beast, hoofed, and jawed. With spikes upon its mighty brow, I watched as he struck the turf and prowled. And yet for all of his magnificence, he couldn't get out of that wooden fence.
As soft as silk, as white as milk, as bitter as gall, a thick green wall, and a green coat covers me all.
It's anything but amusing when this body part gets hit.
What does everyone know how to open but not how to close?
I have it, I don’t share it. If I share it, I don’t have it. What is it?
What do angels sing in the shower?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?