What has many keys but can’t open a single lock?

He digs out tiny caves and stores gold and silver in them. He also built bridges of silver and made crowns of gold. They are the smallest you could imagine. Sooner or later everybody needs his help, yet many people are afraid to let him help them. Who is he?

What you cannot hold but it is yours?

I don't get anymore wetter, no matter how much rain falls on me.

The more you take me, the more you leave me behind.
Who Am I?

I am a type of food that is often found in the fridge and can be white in colour. What I am?
Hint 1: I am a dairy product.
Hint 2: You can spread me on the bread.

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

Can you write down eight eights so that they add up to one thousand?

How can you take 2 from 5 and leave 4?