There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

You have an empty wine bottle with a cork that has been secured at the top in a normal way. There is a metal ring inside the bottle that is suspended by a string.

How can you make the metal ring drop to the bottom if you are not allowed to touch anything - not the bottle, not the cork, not the thread and not the ring?

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

Two old friends, Jack and Jill, meet after a long time, and discussing as:

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?

Find the missing number in the sequence below:

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

No one wants to have it, but if one got it, he does not want to lose it. What is It?

What is the longest word in the dictionary?

One absent-minded ancient philosopher forgot to wind up his only clock in the house. He had no radio, TV, telephone, internet, or any other means for telling time. So he travelled on foot to his friend's place a few miles down the straight desert road. He stayed at his friend's house for the night and when he came back home, he knew how to set his clock. How did he know?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?