Answer:
What has roots as nobody sees, is taller than trees. Up, up it goes, and yet never grows?
What has a neck and no head, two arms but no hands?
It is a sound of empty, speak and it'll talk back plenty. But all the more you yack, you'll get the same words back.
What goes in the water red, and comes out black?
My teeth are sharp, my back is straight, to cut things up it is my fate.
What is 9 added to any number ending in 1