There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?

Solve this tricky question. You are trapped in a forest. With you, you have a gun preloaded with two bullets in it. In front of you, there is a tiger, a leopard and a jaguar.

How do you survive?

How many Watermelons are there in the below picture?

who is silent in the parliament?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

Why is it very easy to weigh a fish?

A B C D E F G H

These are the letters given to you. Now you have to find out the letter that comes two to the right of the letter which is immediately to the left of the letter that comes three to the right of the letter that comes midway between the letter two to the left of the letter C and the letter immediately to the right of the letter F.

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

It can be easily calculated that the digits 0 to 9 can be arranged into 3628800 distinct ten-digit numbers.

But do you know how many of these numbers are prime?