The first box has two white balls. The second box has two black balls. The third box has a white and a black ball.

Boxes are labeled but all labels are wrong!

You are allowed to open one box, pick one ball at random, see its colour and put it back into the box, without seeing the colour of the other ball.

How many such operations are necessary to correctly label the boxes?

What do you get if you add 2 to 100 four times?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

Decode this picture on T-Shirt and tell what it says ?

You can hear me, but you can't touch or see me.

What am I?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

What number when divided in half becomes zero?

Prove that twice of ten is the same as twice of eleven.

As we know that white starts the game of chess. Can you find the scenario shown in the picture below is possible when all the white pieces are at the original place while the black pawn is not as in the below picture?

What is both possible and impossible at the same time?