What Deficiency does the below rebus represent?

VIT_MIN

The world's largest Thanksgiving turkey was on display at a fair. Everyone was admiring it when suddenly a woman ran up and shot the turkey and left. Everyone knew her yet nobody made any attempts to stop or report her. Why?

Can you count the number of blocks in the picture below?

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

What goes up but never comes down?

There are two dice with empty faces in front of you and a marker. You can mark any number on each of the faces of the two dice, but you have to display all 31 days of the month using the two of them.

Which numbers will you mark on which dice so that you can easily depict all the dates of the month?

What is the four-digit number in which the first digit is one-third the second, the third is the sum of the first two, and the last is three times the second?

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

What is the difference between a jeweller and a jailer?