What Deficiency does the below rebus represent?

VIT_MIN

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

What does the following BrainBat signifies?

ABCDEFGHIJKLMNOPQRSTUVWYZ

QQQQQQQQQQQQQQQQQQQQQQQQQ.

What does the below image rebus riddle means ?

In the addition below, all digits have been replaced by letters. Equal letters represent equal digits and different letters represent different digits.
ABCABA
BBDCAA
ABEABB
ABDBAA
------- +
AAFGBDH
What does the complete addition look like in digits?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

What is the longest word in the dictionary?

Find out which of the given views in the picture is accurately the top view of the given pyramid.

John asked Jack, "The time right now is 7 pm. Can you tell me what will be the time 23, 999, 995 hours later ?"

While Bella does not know the answer, do you ?

Below rebus represent famous DiCaprio movie. Can you name it?