There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

Create a number using only the digits 4,4,3,3,2,2,1 and 1. So i can only be eight digits. You have to make sure the ones are separated by one digit, the twos are separated by two digits the threes are separated with three digits and the fours are separated by four digits

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

Krish is 45 years old and his mother Crishtina is 73 years old.

Can you find out how many years ago, his mother was three times his age?

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
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Can you name four days which start with the letter 'T'?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

Women do it once a year after they turn 19 but men get to do it only once in a lifetime. What is it?

John gave half of the apples he had plus one more to Jacob. He gave half of the remaining ones plus one more to James. Now, John was left with just one apple.

Can you find out how many did he have in the beginning?

Can you count the number of quadrilaterals in the picture below?