I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

Once while in his court, King Akbar asked Birbal to write something on a wall that makes one sad when read in good times and makes one happy when read in sad times.

He took only a few moment and wrote something that fit the requirements. What did he write?

What is so fragile that saying its name breaks it?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

You have two jars of chocolates labelled as P and Q. If you move one chocolate from P to Q, the number of chocolates on B will become twice the number of chocolates in A. If you move one chocolate from Q to P, the number of chocolates in both the jars will become equal.

Can you find out how many chocolates are there in P and Q respectively?

I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?

Two natural numbers have a sum of less than 100 and are greater than one.

John knows the product of the numbers and Jacob knows the sum of numbers.

The following conversation takes place between them:
John: 'I am not aware of those numbers.'
Jacob: 'I knew you wouldn't be. I am not aware myself.'
John: 'Now I know them!'
Jacob: 'Now I know them, too!'

What are the two numbers?

Find the last number in the series below:

voN luJ yaM raM ---

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?