Answer:
I'm the source of all emotion, but I'm caged in a white prison.
I am black when I am clean and white when I am dirty?
If eleven plus two equals one, what is nine plus five equal to?
What type of paper can you neither read nor write on?
I have a tongue, but do not talk. I follow close, but neither run nor walk. Coupled and hitched, but never married. You couldn't bear the load I've carried.
When is it bad luck to see a black cat?