Find the number of squares in the below-given picture.

Rectify the following equality 101 - 102 = 1 by moving just one digit.

What is the largest number you can write with just 3 digits?

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

which number am I?

Bobby and Wilbur decided to take their respective car out of the garage and race. None of them cheated and they both stood at the start time and decided to cover a distance in full throttle. The first to reach the mark was to be declared the winner.

Upon reaching the finishing mark, they found out that Bobby's car was 1.2 times faster than Wilbur's. Now, Wilbur had reached the mark about 1 minute and 30 seconds later than Bobby. Bobby's car reached the mark of 60 MPH on average.

Can you calculate the distance between the starting mark and the final mark with the help of the given data?

Can you find out which number multiplied by itself will give the output as 12345678987654321?

Replace all '*' with digits 1, 2, 3, 4, 5 and 6 to make below statement true.

* *
x *
=====
* * *

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 four-digit number (not beginning with 0) can be represented by ABCD. There is one number such that ABCD=A^B*C^D, where A^B means A raised to the B power. Can you find it?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?