What Deficiency does the below rebus represent?

VIT_MIN

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?

Can you solve the below tricky visual equation?

Who always enjoys poor health?

I had an infinite supply of water and 5 litres and 3 litres jars.

How would you measure exactly 4 litres in the least number of steps?

Find the number of squares in the below picture

What has one eye, but can’t see?

A man dies of old age on his 25 birthday. How is this possible?

How can a man go eight days without sleep?

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?