See the given image carefully. What you have to do is move the blue checkers in the position of the black checkers and vice versa. You are only allowed to move the checker to an adjacent empty space. Do it in the least possible moves.

What can go up a chimney down, but can’t go down a chimney up?

What is the next number in this series?

4,12,84,3612....

Find out the missing number in the picture attached:

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

An exterior architect is asked by a builder to plant seven trees in a manner that there are exactly six rows of trees in a straight line and each row has three trees in particular.

How will he do it?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

People put me on the table and cut me but do not eat me. What am I?

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

A charming young lady was approached by a kind looking old woman in a restaurant. The old woman said to her, 'You look exactly like my younger daughter. Sadly she passed away a couple of months back. Could you do me a favor and say 'Goodbye, mother' with a kind smile on your face when I leave?

The young lady agreed for the same and said, 'Goodbye, mother' when the old woman left. Soon after, she got the most disengaging shock of her life.

Can you guess what the shock was?