Answer:
I soar without wings I see without eyes. I've traveled the universe to and fro. I've conquered the world yet I've never been anywhere but home.
What building has the most stories?
What begins with an E but only has one letter?
I destroy your home from the inside out.
I regularly change shape yet remain a sphere. I am always there but not often seen. What am I?
Give it food and it will live, give it water and it will die.