In the picture, you can see a chess board. On the top left position, the K marks a knight. Now, can you move the knight in a manner that after 63 moves, the knight has been placed at all the squares exactly once excluding the starting square?

What can you hold in your right hand, but never in your left hand?

A few friends are enjoying their sea voyage in a boat full of apples. On the way, they felt hungry and thus decided to eat the apples. Together, they ate two dozen of apples. When they have eaten the apples, will there be any change in the water level?

Can you fill the blank with the correct number?

6 30 870 756030 _____

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

Rob is taller than Edwin, and Jurgen is shorter than Rob.
Of only one of the following statements, we now certainly know it is correct:

A.Edwin is taller than Jurgen
B.Jurgen is taller than Edwin
C.It cannot be determined if Jurgen or Edwin is the tallest.

They are three errirs in this question. Can you find them?

I look at you, you look at me I raise my right, you raise your left. What am I?

Which number comes next in the number series?

2, 9, 30, 93, ?

Replace the 'X' with any mathematical symbol to make the expression equal to 111.

18 X 12 X 2 X 3 = 111