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?

To tease, King Akbar told his most clever advisor Birbal to give his daughter one thing that she can eat when hungry, drink if she feels thirsty and can burn if she feels cold. King Akbar was shocked when Birbal gave Akbar's daughter one such thing that satisfies all of the above.

What did Birbal give to Akbar's daughter?

Can you write down eight eights so that they add up to one thousand?

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

Can you find the number?

What seven-letter word has hundreds of letters in it?

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

Can you count the number of triangles in the given figure?

A patient was diagnosed with some ailment. He was given five different tablets to take at night at an interval of 15 minutes.

How long will it take the patient to consume all the five tablets?

What are the next two letters in the following series and why?
W A T N T L I T F S _ _

*Hint: Check Puzzle Title