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 place six X (crosses) in below board without making three in a row in any way ?

The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?

Can you calculate the probability of getting a sum of six when a dice is thrown twice?

Why do people go to bed?

How many sides does a circle have?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

Place a mathematical symbol between the numerals 5 and 9 in such a way that the resulting number is greater than 5 but smaller than 9.

What month of the year has 28 days?

Out of four images which one is the odd one out?