A frog is at the bottom of a 30-meter well. Each day he summons enough energy for one 3-meter leap up the well. Exhausted, he then hangs there for the rest of the day. At night, while he is asleep, he slips 2 meters backwards. How many days does it take him to escape from the well?

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

What does this mathematical rebus means ?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

Identify The phrase in the picture.

I have some blue and red sock in my drawer. I have a total of 4 socks. I pick 2 socks and the chance that I get a pair of red socks is 1/2.

What is the chance of picking a pair of blue socks?

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

In the figure, you can see nine stars. What you have to do is connect all of them by using just four line and without lifting your hand i.e. in a continuous flow.

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?