Answer:
I am whole but incomplete. I have no eyes, yet I see. You can see, and see right through me. My largest part is one fourth of what I once was.
What can be swallowed, But can also swallow you?
who do you think you know but sometimes you don't
What is weightless but takes two people to hold it?
I grow for a surface, even if you cut me. I continue to grow even after death.
What goes up the hill and down the hill, And spite of all, yet stand still?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?