What Deficiency does the below rebus represent?

VIT_MIN

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

You are playing a game with your friend Jack. There are digits from 1 to 9. You both will take turn erasing one digit and adding it to your score. The first one to score 15 points will win the game.

Would you want to play first or second?

PS: The sum should be exactly 15.

You are in a room with no metal objects except for two iron rods. Only one of them is a magnet.
How can you identify which one is a magnet?

I never was there, I am always to be.
You have never ever seen me, not ever you will.
Yet I am the confidence of everyone.

Who Am I?

I am the beginning of everything, the end of everywhere. I'm the beginning of eternity, the end of time and space. What am I?

I know a nine-letter word having only one vowel.
Do you ?

I am sure no one can have two things for dinner. what are they?

What does below science rebus mean?

Ag Ag Ag
Ag SPOON Ag
Ag Ag Ag

After a heavy Thanksgiving meal, the night watchman went to work. In the morning, he told his boss he had dreamed that a saboteur planted a bomb in the factory and that he felt it was a warning. The boss promptly fired him. Worker confused, Why boss fire him?