There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

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

A wooden log balances equally on the scales when weighed with three-quarters of a pound and three-quarters of a wooden log.

Can you calculate the weight of the entire wooden log?

Imagine you are in a room with no windows or doors. How will you get out?

I have feet, but no legs. Which animal Am I?

Below, you will find the mathematical proof that 10 equals 9.99999?. But is that possible or there is something wrong about it? Can you find the error?

x = 9.999999...
10x = 99.999999...
10x - x = 90
9x = 90
x = 10

You need to move three matchsticks to form three squares. Can you do it?

I know there are two methods by using three time the same number with a plus(+) operator , you can make sum as 60.

One of them is 20+20+20.

whats the other way ?

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