Best riddles with simple answers

What has two humps and is found at the North Pole?

What goes up when rain comes down?

They are twin sisters, same height; they work in the kitchen, arm in arm. Whatever is cooked, they always try it first.

What is everthing yet nothing, has no start and no end, creates yets destroys, brings life and death what is it?

A slender body, a tiny eye, no matter what happens, I never cry. What am I?

I go in hard. I come out soft. You blow me hard. What am I?

I have a face like a tree and skin like the sea. A great beast I am, yet small vermin frighten me. What am I?

I am a soldier and i really hate one month. Which month i am talking about?

I'm a soft and furry pet. I have four legs and a long tail. I have sharp teeth and claws. I like to chase mice. I am a...

Everyone in the world needs it. They generously give it. But never take it. Then what is it?