Answer:
I row quickly with four oars but never comes out from under my own roof.
You write on me and secrets I can keep in places never seen. I spin like a top. Though stiff as a board, I'm often described like a mop. What am I?
I go into the water black and come out red. What am I?
I have cities without people forests without trees and oceans without water. What am I?
I ask no questions but receive a lot of answers. What am I?
Be sure to shout for its answers are weak, but there is no language it cannot speak.