Good Riddles

Question: I had a bright start,
but I couldn't take the pressure.
I consume everything,
yet I don't eat anything.
What am I?

Question: What demands an answer, but asks no question?

Question: I build bridges of silver and crowns of gold.Who am I?

Question: Why did the hamburger go to the gym?

Question: Snow White had the dwarfs were having dinner. The dwarfs asked for more food so snow white got them more.

How many seconds did she take?