What Deficiency does the below rebus represent?

VIT_MIN

A 3 digit number is such that it's unit digit is equal to the product of the other two digits which are prime. Also, the difference between it's reverse and itself is 396.

What is the sum of the three digits?

There are 2 sand hourglasses.

The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand hourglasses running together ?

What's the best place to go shopping in the ocean?

Which is faster, Heat or Cold ? Explain.

Can you count the number of squares in the given picture?

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

Can you place three balls such that the equation shown in the picture holds true?

A train full of passengers goes through a tunnel. When the train comes out from the other end, there is no single person on the train.

How did it happen?

I am a ten letters word
The first four letters have the power to rule,
Next, four-letter can be eaten.
The next three-letter represents a lady.
I can fly as well

what am I looking for?