The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

Can you find out the remainder when 3^300 is divided by 5?

If 21x = 79x, what is the value of x?

I am an odd number. Take away a letter and I become even. What number am I?

You need to arrange three 7 and mathematical symbols to form number 1?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

A Shopkeeper collects 71 rupees in the form of 20 paisa and 25 paisa.
He collects a total of 324 coins.

Can you tell me how many number of 20-paisa and 25-paisa he got?

You have two jars of chocolates labelled as P and Q. If you move one chocolate from P to Q, the number of chocolates on B will become twice the number of chocolates in A. If you move one chocolate from Q to P, the number of chocolates in both the jars will become equal.

Can you find out how many chocolates are there in P and Q respectively?

What is next number in the pattern below:

131 517 192 123 ?