What Deficiency does the below rebus represent?

VIT_MIN

A sundial has the fewest moving parts of any timepiece. Which has the most?

A bomb goes off.
Carnage.
One person, only a few feet away, survives! How can this be?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?

What's a single-digit number with no value?

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

I hide my treasure in the ground, my tail is big and fluffy. If you spot me in a tree, please don’t call me scruffy. What am I?

John is on an island and there are three crates of fruit that have washed up in front of him. One crate contains only apples. One crate contains only oranges. The other crate contains both apples and oranges.

Each crate is labelled. One reads 'apples', one reads 'oranges', and one reads 'apples and oranges'. He know that NONE of the crates have been labeled correctly - they are all wrong.

If he can only take out and look at just one of the pieces of fruit from just one of the crates, how can he label all of the crates correctly?

A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?