I am a prime number.
The double of myself is equal to the square of me.

which number am I?

Can you make four (4) nines (9) equal 100?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

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?

There are nine dots in the picture that has been attached with this question. Can you join all the dots by drawing four straight lines without picking up your pen?

Who can jump higher than a Mountain?

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?

Known by all without exception, Forever here, for your protection, Sometimes strong, sometimes weak, Right after the night I come - hot and chic. And while millions of miles away, I always get to you, I find my way. No life around could do without me, Can you guess what I might be?

A quarter is one-fourth of a dollar but Mr. John has changed the equation as below :

DOLLAR * 4 = QUARTER

Can you replace each letter with a digit to make the above solution correct?

Remove two matchsticks to make the below equation correct.