Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

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?

This is a simple one. You just have to count the number of Fs in the given sentence.

Finished Files are the result of years of scientific study combined with the experience of years.

How many did you count?

Can you find a five letter word that is left with only two letters if one is removed?

There’s a one-story house in which everything is yellow. Yellow walls, yellow doors, yellow furniture. What colour are the stairs?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

How many bricks does it take to complete a building that is 15 feet wide, 30 feet deep, and 12 feet tall made of brick?

John is asked to stand behind Jacob and Jacob is asked to stand behind John. Both of them feel confused about it and don't know what to do?

But it is quite possible, do you know how?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

There was an aeroplane crash, every single person died, but two people survived. How is this possible?