What Deficiency does the below rebus represent?

VIT_MIN

You are given with the following sum. Each of the letters can be decoded as a digit. If we tell you that D = 5, then can you solve it entirely?

DONALD
+GERALD
=ROBERT

What time is it when an elephant sits on a fence?

During which month do people sleep the least?

By what process could you make a 'Tea-Table' into food?

I am the black child of a white father, a wingless bird, flying even to the clouds of heaven. I give birth to tears of mourning in pupils that meet me, even though there is no cause for grief, and at once on my birth, I am dissolved into air. What am I?

A man fell off a smuggling boat into deep water. He could not swim and he was not wearing anything to keep him afloat. It took 30 minutes for the people on the boat to realize someone was missing. The missing man was rescued two hours later on the return trip. Why didn't he drown? Note:- He didn't know swimming, the sea was deep, and He wasn't holding anything

What can you deduce from the following BrainBat?

CRY
LMKI

You can hear me, but you can't touch or see me.

What am I?

Solve this riddle by finding the odd one out from the rest.