What am I?

As a state in America. I am round on both sides and high in the middle. What am I?

related riddles

I can be deep, I can be powerful, I can be complex, blind, difficult, and profound at the same time. What am I?

I’m an old relative who’s hand’s can’t hold anything and eyes can’t see anything. What am I?

If you eat me, my sender will eat you. What am I?