Answer:
I occur twice in eternity. And I'm always within sight.
Poor people have it. Rich people need it. If you eat it you die. What is it?
What pulls you down and never lets go?
Sally, Lisa, and Bernadette are triplets. But Sally and Lisa share something that Bernandette does not. What is it?
Used to keep prisoners silent and to make temporary repairs on cars.
People take me on walks and I run and have fun. What am I?