If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

A boy collects white seashells from the sea and brings them home every night. When he has enough of them, he decides to sell them to a trader.

The trader is ready to buy the shells and he asks the boy about the quantity. At this, the boy starts calculating. He has a giant box that contains 3 mini boxes. Two of them have another mini box inside. If the giant box can hold 50 shells, how many brown shells can he sell to the trader?

You can see three almost identical images below. Can you spot the odd one out from them?

If six children and two dogs were under an umbrella, how come none of them got wet?

Once while in his court, King Akbar asked Birbal to write something on a wall that makes one sad when read in good times and makes one happy when read in sad times.

He took only a few moment and wrote something that fit the requirements. What did he write?

How many times can you subtract the number two from the number fifty?

Solve the mathematical equation in the picture below.

You are on a Boat in the mid of a river. You have two cigarettes with you. One of these two you have to light, how will you light the cigarette?

The more you take me, the more you leave me behind.
Who Am I?