Answer:
Flat as a leaf round as a ring. I have two eyes but can't see a thing.
The last man on Earth received a phone call, who was the caller?
Many people own a copy of me. Without me the world would fall.
I give people a huge fright, but at the end I'm sweet. I normally celebrate at night, when there's less heat. What am I?
When I live I cry if you don't kill me I'll die.
What gift should you give blind people, drunks, and nerds for Christmas?