Why is it against the law for a man living in Delhi to be buried in Mumbai?

It spends most of its day eating white, but when it’s quick enough, it gets to eat fruit and sometimes some blue things. It’s in a dark room, where the walls are blue, it runs from a ghost that roams the halls and haunts it all the time. What is it?

You have two buckets - one holds exactly 5 gallons and the other 3 gallons. How can you measure 4 gallons of water into the 5 gallon bucket?

(Assume you have an unlimited supply of water and that there are no measurement markings of any kind on the buckets.)

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

I add 5 to 9 and get 2. The answer is correct, so what am I?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

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?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

Can you spot the hidden girl in the picture below?