What work can one never finish?

Replace the question mark with the correct number.

You can find some missing letters in the picture. By placing two particular letters in the spaces, you can form a nine lettered word beginning from one of the corners and going clockwise direction to the middle. Can you find out the letters and the word?

What can you catch but never throw?

Where do fish keep their money?

Solve the equation in the image by looking at the pattern closely.

John buys rice at Rs.60/kg from Britain and then sells them at Rs.5/kg in India. As a result of this, he becomes a millionaire. How come?

A bomb goes off.
Carnage.
One person, only a few feet away, survives! How can this be?

How many times can you subtract the number 5 from 25?

I am a type of food that is often found in the fridge and can be white in colour. What I am?
Hint 1: I am a dairy product.
Hint 2: You can spread me on the bread.