Answer:
I am a tool for fairies.
What can you hold in your right hand but not in your left hand?
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.
What building has the most stories?
Use me if you really want to see inside someone
I flow from the Homerβs mouth when he sees doughnuts.