How old is your son? asked a man to his neighbour. My son is five times as old as my daughter and my wife is five times as old as my son. I am twice as old as my wife whereas my grandmother, who is celebrating her eighty-first birthday is as old as all of us put together.

How old is the man's son ?

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

What four weights can be used to balance from 1 to 30 pounds?

The centre of the third figure is empty. What digit should fit inside?

Can you find out the missing number in the grid?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

Solve the counting riddle by identifying the number of triangles in the given picture.

Solve the following series:
AZ, GT, MN, __, YB

what's the probability of getting a king or a queen from a pack of 52 cards?

A man desired to get into his work building, however he had forgotten his code.
However, he did recollect five pieces of information
* Fifth number + Third number = 14
* The fourth number is one more than the second number.
* The first number is one less than twice the second number.
* The second number and the third number equals 10.
* The sum of all five numbers is 30.

What is the code ?