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?

What have one eye but still cannot see?

What number comes next in this sequence:
7 8 5 5 3 4 4 _

Give it food and it will live; give it water and it will die.

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

Can you fill the blank with the correct number?

6 30 870 756030 _____

How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

If you say my name, I will no longer exist. What am I?

Two old friends, Jack and Bill, meet after a long time.

Three kids
Jack: Hey, how are you, man?
Bill: Not bad, got married and I have three kids now.
Jack: That's awesome. How old are they?
Bill: The product of their ages is 72 and the sum of their ages is the same as your birth date.
Jack: Cool..But I still don't know.
Bill: My eldest kid just started taking piano lessons.
Jack: Oh, now I get it.

How old are Bill's kids?

I throw two dice simultaneously.

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