If eleven plus two equals one, what does nine plus five equal?

How can you take 2 from 5 and leave 4?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

This is a most unusual paragraph. How quickly can you find out what is so unusual about it? It looks so ordinary, you'd think nothing was wrong with it. Actually, nothing IS wrong with it. But it is not as ordinary as you might think. If you think about it for a bit, you will find out why it is truly so unusual. So what is it? What is so unordinary about this paragraph?

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

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?

Before Mount Everest was discovered, what was the highest mountain in the world?

I am dry when I go inside, but wet when I am pulled outside.
The longer I am inside, the stronger I get
When I am completely out, I am wet and I literally sag
Who am I?

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?

You Throw The Outside, Cook The Inside
Eat The Outside, Throw The Inside.

What Is It?