What Deficiency does the below rebus represent?

VIT_MIN

If 21x = 79x, what is the value of x?

At a party, there are five people and a whole round cake lying at the centre of the table. Only four people will make a cut and take their piece and the last one will get the remaining piece on the table. How can they make sure that everyone gets a 1/5th of the piece?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

When is the top of a mountain similar to a savings account?

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

Find out the number of circles in the given picture having Illusion

A girl has as many brothers as sisters, but each brother has only half as many brothers as sisters. How many brothers and sisters are there in the family?

An artist while painting a scenic beauty, decides to paint three layers of blue colour on the sky.

Which layer will go on the first?

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?