The more of this there is, the less you see. What is it?

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 can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

I go up and I go down.
I go up towards the beautiful sky and down toward the green ground.
I am present tense.
I am past tense too
Children love me.

Who Am I?

I am soft and cuddly that soothe your heart. But, If you pick my last name I am going to tear you all apart. Who am I?

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?

Why 1729 is a magic number? Answer Logically.

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?