Answer:
I am seen in the water. If seen in the sky, I am in the rainbow, a jay's feather, and lapis lazuli.
What can be filled with empty hands?
It's in your hand though you can not feel it. Only you and time can reveal it.
I can be written, I can be spoken, I can be exposed, I can be broken.
My teeth are sharp, my back is straight, to cut things up it is my fate.
What covers its face with its hands, speaks no language, yet most known what it's saying?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?