A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?

Using four sevens (7) and a one (1) create the number 100. Except for the five numerals, you can use the usual mathematical operations (+, -, x, :), root and brackets ()

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?

What number divided by 4 is the same as that number minus 4?

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

Replace the question mark with the correct number in below Picture:

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?

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

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?