How many sides does a circle have?

A boy purchased a book from a bookkeeper and gave him $100.
The cost of the book is $50 but the bookkeeper has no change, so he gets the change from the next shop and returns the boy his $50.

After some time the next shopkeeper came with the $100 note and told the bookkeeper that the note was a fraud, so he took the money back.

How much loss did the bookkeeper face?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

Why is it very easy to weigh a fish?

Make a sentence consisting of three words that have the whole alphabet.

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

Why did the Girl throw the butter out of the window?

A bag contains 64 balls of eight different colours. There are eight of each colour (including red). What is the least number you would have to pick, without looking, to be sure of selecting 3 red balls?

81 x 9 = 801. What must you do to make the this equation true?

Sachin bought a car with a strange 5 digit numbered plate.The water image of the number is 78633 more than my car number. All the digits of car number are distinct.

What is the original number on number plate?