What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

When 99 is considered higher than 100?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

A woman is sitting in her hotel room and hears a knock at the door. She opens the door to see a man whom she’s never met before. He says, “I’m sorry, I have made a mistake, I thought this was my room.” He then goes down the corridor and into the elevator. The woman goes back into her room and calls security. What made the woman so suspicious of the man?

You need to move three matchsticks to form three squares. Can you do it?

There was a man he lives in a hotel each morning he presses the first floor button each evening if there is a person in the elevator he asks him to press the 10 floor button if there is no one in the elevator he takes the stairs why.

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?

Two-person want to cross a river. Only one boat is present on the riverside that can carry only one person at a time.

However, they still manage to cross the river. How is it possible?

What kind of storm is always in a rush?