Answer:
I row quickly with four oars but never comes out from under my own roof.
I have two body parts but am used to measure length. What am I?
What gets bigger the more you take away?
What goes through a door but never goes in and never comes out?
I go into the water black and come out red. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.