What Deficiency does the below rebus represent?

VIT_MIN

Doctor Alex and a bus driver John are both in love with the same woman named Olivia. The bus driver need to go for a long trip of 10 days, Before he left he gave Olivia 10 apples.

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

Which wheel of car does not rotate when you turn your car right?

You see me once in June, twice in November, and not at all in May. What am I?

What is black when you buy it, red when you use it, and gray when you throw it away?

If six children and two dogs were under an umbrella, how come none of them got wet?

What will you call your mother's brother's brother-in-law?

A bridge is about to collapse. There are four people P, Q, R and S on one of the sides. Before the bridge collapses, they want to cross it. Now since the bridge is too weak, it can only stand the weight of two people at a time. Also, it is night time and nothing is visible. They have just one torch with them.

Now P takes one minute to cross the bridge, Q takes two minutes to cross, R takes five minutes to cross and S takes ten minutes to cross.

The bridge will collapse in seventeen minutes. How will they be able to cross the bridge before it collapses?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?