Answer:
It is in every mountain, it's not in any hill, it's not in all the world, and yet it's in the mill.
A person who chews the ends of their fingers
I am partially baked. I am not completely lit. I am a portion of the moon. I am lesser than full wit. I am a divider of the hour. I am not a total lie. I am a sibling through one parent.
What ends in E, starts with E and has a letter inside it?
I can be as thin as a picture frame but my insides have many things you can see.
Dry though I may be, I am still a sea.