Can you make a six-letter word using the letters N, A and B ?

Imagine you are in a room with no windows or doors. How will you get out?

It begins where the time ends.
Its second is an expression of surprise.
Its third is a question.
Its fourth is urinate.
It ends with a drink.

Which country it is?

What is the centre of gravity?

What country can make you shiver?

Where do you go to learn how to make ice cream?

A sea diver is a real show-off. He showed everyone that he can hold his breath underwater for 15 minutes.

I went to the diver and told him that I can be underwater for double the time i.e 30 minutes.
He responded that he will give me 100$ if I would be able to do it. I won 100$.

What did I do?

What can you hold in your right hand, but never in your left hand?

How can you drop a raw egg from a height onto a concrete floor without cracking it?

I am five letter word that is under you.
If you remove my 1st letter, then I am over you.
If you remove my 1st and 2nd letters then I am all around you.

Who am I?