Solve below rebus puzzle?

What does this rebus mean?

O
N
C
E
TIME

What Deficiency does the below rebus represent?

VIT_MIN

Rebus Puzzle Definition: A rebus is an illusion device that uses pictures to represent words or parts of words.
What does This Rebus Puzzle Identify?

what does this below rebus represent identXQQQQQME

what does the below rebus means?

What does this Rebus Picture mean?

What does this rebus puzzle means ?

What is the word or phrase?

what one word does the below rebus identifies?