Answer:
Humans have two that shrink in the light and expand in the dark
Not a comb or a brush but makes the hair feel plush. What is it?
Without this, H2O would just be 2O
You walk into a room with a match, a kerosene lamp and a fireplace. Which do you light first?
I have eighty-eight keys but cannot open a single door? What am I?
Two little holes in the side of a hill. Just as you come to the cherry-red mill.