Its hard to give up riddle

Question: It's hard to give up.Remove part of it and you still have a bit.Remove another part, but bit is still there.Remove another and it remains.What is it?

Question: What is that thing we buy for eating but cannot eat it?

Question: A girl dove in the sea.. some say there are two people under the sea. Why is that?

Question: Why Can't you hear a pterodactyl using the restroom

Question: Look at my face, I am somebody. look at my back, i am nobody. What am I?

Question: I have 6 faces and 21 eyes, but can't see a thing. What am I?