Answer:
I pass before the sun but make no shadow. What am I?
Break me and I am better immediately set and harder to be broken again.
Many people own a copy of me. Without me the world would fall.
I am a certain five-letter word and become shorter when you add two letters to me. What am I?
What can travel around the world while staying in a corner?
A little house full of meat, no door to go in and eat.