There are forty elephants and they have forty-fore heads. How can this be possible?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

What country can make you shiver?

As we know that white starts the game of chess. Can you find the scenario shown in the picture below is possible when all the white pieces are at the original place while the black pawn is not as in the below picture?

What is the four-digit number in which the first digit is one-third the second, the third is the sum of the first two, and the last is three times the second?

What is the difference between a jeweller and a jailer?

Can you count the number of squares in the figure below?

Solve the alphametic puzzle by replacing the alphabet with the number.

S T O R M +
S O L E S
=========
T O W E L
=========

There are four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain?

Identify the 10 differences between the two given pictures.