Can you make the number 24 by utilizing the numbers 1, 3, 4 and 6? You must use one number only one time and you can use mathematical operation symbols anytime anywhere.

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

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?

Can you find a number that lies one third of the distance between 1/3 and 2/3?

Solve the puzzle by telling what does below picture means.

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

The Little ant seems to be always confused. Do you know why?