Below is the sum of symbols in each row and column in the figure. Analyzing the figure, can you find out the value of the symbols?

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

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?

In the attached figure, you can see a chessboard and two rooks placed on the chess board. What you have to find is the number of squares that do not contain the rooks. How many are there?

What does it mean?

Can you spot the hidden girl in the picture below?

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?

Trying to tease Birbal, Akbar gave him one gold coin and ask him to buy
* something for him to eat
* something for him to drink.
* something to feed the cows
* something to plant in the garden
and most important you need to buy only one thing.

What must Birbal buy to silence Akbar?

What is the next number in this matchsticks series riddle?

An infinite number of mathematicians are standing behind a bar. The first asks the barman for half a pint of beer, the second for a quarter pint, the third an eighth, and so on. How many pints of beer will the barman need to fulfill all mathematicians' wishes?