As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

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 know a nine-letter word having only one vowel.
Do you ?

Prove that twice of ten is the same as twice of eleven.

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different.

How do you measure 45 minutes?

Two friends were betting. One said to the other, "The coin will be flipped twenty times and each time the coin lands on the head, I will give you $2 and each time it lands on the tale, you will give me $3." After flipping the coin twenty times not a single penny was exchanged among them.

How many times did the coin land on heads?

Can you replace the question mark with the correct number?

What is the next number in the series?

15 29 56 108 208 ?

What jumps when it walks and sits when it stands?