There is a square piece of paper with a hole that is denoted by the circle on the top right side in the given picture. You have to cut the paper in a manner that it forms two and only two separate pieces of paper and then rearrange the pieces in a manner that the holes come in the centre of the paper.

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?

I am under you when I am whole.
I shift above you if you remove the first letter.
I come all around you if you remove the second as well.

Can you tell me who I am?

Look at me. I can bring a smile to your face, A tear to your eye, Or even a thought to your mind. But, I can't be seen. What am I?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

What is the centre of gravity?

How can you leave a room with two legs and return with six legs?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

What can you see in the middle of March and April that you can never see in any other month?

You need to remove two matchsticks to make the below equation true. Can you do it ?