Answer:
I am seen in the water. If seen in the sky I am in the rainbow a jay's feather and lapis lazuli.
I wiggle and cannot see; sometimes underground and sometimes on a tree. I really don't want to be on a hook and I become a person when combined with “book”.
I am taken from a mine and shut in a wooden case from which I am never released. Yet I am used by almost everybody. What am I?
I am an animal and a hair product
I hop around and deliver eggs at Easter.
The answer I give is yes, but what I mean is no. What was the question?