Answer:
What kind of nut is empty at the center and has no shell.
If Teresa’s daughter is my daughter’s mother, who am I to Teresa?
They can float and tickle, but their sound is rarely heard unless you're a pillow or bird. What are they?
Take one out and scratch my head, I am now black but once was red.
What is that which, though black itself, enlightens the world without burning?
You use it between your head and your toes, the more it works the thinner it grows.
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?