Answer:
I'm the source of all emotion, but I'm caged in a white prison.
Pregnant every time you see her, yet she never will give birth.
I run around the city, but I never move.
My first is in some but not in all. My second is into but not in tall. My third in little but no in big. My fourth in port but not in pig. My whole is made in nature's way. For clothing, rugs used every day.
What has two spines and a lot of ribs, and carries much but never moves?
I always have to work with something in my eye. What am I?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?