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?

John is the son of Jacob.
So,
Jacob is the_____of John's father?

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

Identify Me

Hint1: I am a god
Hint 2: I am a planet
Hint 3: measurer of heat

What work can one never finish?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

'S' refers to the number of seconds in a day and 'H' refers to the number of hours in ten years. Which quantity out of these two is greater?

A Shopkeeper sold a few chickens to four different customers on a particular day. It was such that each customer purchased half of the remaining chickens and half the chicken more.

Can you find out how many chicken were sold by the shopkeeper on that day if we tell you that the fourth customer bought a single chicken ?

Using the clues below, what four numbers am I thinking of?

The sum of all the numbers is 31.
One number is odd.
The highest number minus the lowest number is 7.
If you subtract the middle two numbers, it equals two.
There are no duplicate numbers.