What Deficiency does the below rebus represent?

VIT_MIN

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

How many triangles are there in the picture below?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

What month of the year has 28 days?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

A cricket has 6 legs, a squirrel has 4 legs and a spider has 8 legs.

In a local zoo, it was found that the total number of legs is 612. Also, there are equal number of each of the above animals/insects.

Can you find out how many animals are there in the zoo?

I am a five-letter word under you,
Remove the first letter and I am above you,
Remove the second as well and I am around you.

Who am I?

You are a prisoner sentenced to death. The Emperor offers you a chance to live by playing a simple game. He gives you 50 black marbles, 50 white marbles, and 2 empty bowls. He then says, 'Divide these 100 marbles into these 2 bowls. You can divide them any way you like as long as you use all the marbles. Then I will blindfold you and mix the bowls around. You then can choose one bowl and remove ONE marble. If the marble is WHITE you will live, but if the marble is BLACK... you will die.'

How do you divide the marbles up so that you have the greatest probability of choosing a WHITE marble?