Answer:
If you have me you want to share me. If you share me you don't have me. What am I?
I have a small hill with seven holes. What am I?
By Moon or by Sun, I shall be found. Yet, if there's no light around, I am undone. What am I?
I give people a huge fright but at the end I'm sweet. I normally celebrate at night when there's less heat.
I dig out tiny caves and store gold and silver in them. I also build bridges of silver and make crowns of gold. Sooner or later everybody needs my help yet many people are afraid to let me help them.
Often cooked as fillet, this meat comes from an animal that swims underwater.