Answer:
You use me between your head and your toes the more I work the thinner I grow.
I have six faces but not even one body connected 21 eyes in total but cannot see.
What asks but never answers?
I never was but always will be. No one ever saw me but everyone knows I exist. I give people the motivation to better themselves every day. What am I?
What is full of holes but still holds water?
What language does a billboard speak?
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic