Answer:
What has a head and a tail but no body?
I have two body parts but am used to measure length. What am I?
What force and strength cannot get through I with my unique teeth can do.
What goes in the water black and comes out red?
I am an instrument capable of making numerous sounds but cannot be touched or seen. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.