I have an eye but still cannot see.

Who am I?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

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?

How many sides does a circle have?

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

I have a head like a cat and feet like a cat, but I am not a cat. What am I?

How many times can you subtract the number two from the number fifty?

I get hot but I never sweat,
I cook food but I am not a chef,
I have a door but you can't enter me,
I have a light but I am not a lamp.
Who am I?

Samuel was out for a walk when it started to rain. He did not have an umbrella and he wasn't wearing a hat. His clothes were soaked, yet not a single hair on his head got wet. How could this happen?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?