Answer:
A seed am I, three letters make my name. Take away two and I still sound the same.
Pregnant every time you see her, yet she never will give birth.
An open ended barrel, it is shaped like a hive. It is filled with the flesh, and the flesh is alive.
What's a place you have left but didn't enter?
What goes through a door but never goes in. And never comes out?
People take me on walks and I run and have fun. What am I?