Answer:
I have to be broken before I can be used
Two bodies have I, though both joined in one. The more I stand still the faster I run. What am I?
The more you have of it the less you see. What is it?
Canine children.
I have two body parts but am used to measure length. What am I?
What begins and has no end? What is the ending of all that begins?
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic