Clock Hands Overlapping

How many times a day do the minute and hour hands of a clock overlap?

Ah! Click here to read the solution.

Everybody Needs My Help

I dig out tiny caves, and store gold and sliver in them.

I also build bridges to sliver and make crowns of gold.

They are the smallest you could imagine.

Sooner or later everybody needs my help yet many people are afraid to let me help them.

Who am I?