Difficult

What can be swallowed, but can swallow you?

related riddles

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.

Though I wander the earth, I am no longer here. I am pale and I chill everyone near. Who am I?

He has married many women, but has never been married. Who is he?