Can you count the number of matches in the picture below ?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

I start and end with 500 and carry a 5 in my heart. But I require the first letter and the first number to be complete. I am the name of a King.

Who am I ?

When it's bad luck to meet a black cat?

Find three numbers such that When we multiply three numbers, we will get the prime numbers. The difference between the second and the first number is equal to the third and second.

John is asked to stand behind Jacob and Jacob is asked to stand behind John. Both of them feel confused about it and don't know what to do?

But it is quite possible, do you know how?

Replace the question mark with the correct number below.

There are 20 people in an empty, square room. Each person has full sight of the entire room and everyone in it without turning his head or body, or moving in any way (other than the eyes). Where can you place an apple so that all but one person can see it?

Why Aeroplane windows are round?

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