Answer:
I'm the source of all emotion, but I'm caged in a white prison.
It covers you, you lose it every day and you'd die without it.
Some adults still use these to count.
Raise your right appendage high above your head. Turn your head to the right and you will smell this.
What ends in E, starts with E and has a letter inside it?
I am your mother's brother's only brother in law. Who am I?