A rubber ball keeps on bouncing back to 2/3 of the height from which it is dropped. Can you calculate the fraction of its original height that the ball will bounce after it is dropped and it has bounced four times without any hindrance ?

Can you make a fire with just a single stick?

Replace the letters of words with a number so that the below equation holds true

BASE +
BALL
---------
GAMES
----------

What occurs twice in a week, once in a year but never in a day?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

In the picture that is attached with this question, you can find a square which comprises of four little squares inside it. Consider this square to be made with matchsticks. You have to remove two matchsticks such that only two squares remain instead of five.How will you do it ?

Six people park their car in an underground parking of a store. The store has six floors in all. Each one of them goes to a different floor. Simon stays in the lift for the longest. Sia gets out before Peter but after Tracy. The first one to get out is Harold. Debra leaves after Tracy who gets out on the third floor.

Can you find out who leaves the lift on which floor?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

What number comes next in the series?

5 15 5 18 5 24 14 20 _