If you say my name, I will no longer exist. What am I?

What Deficiency does the below rebus represent?

VIT_MIN

Twice ten are six of us,

Six are but three of us,

Nine are but four of us;

What can we possibly be?

Would you know more of us?

Twelve are but six of us,

Five are but four, do you see?

What are we?

On a bus, there is a 26-year-old pregnant lady.
A 30-year-old policeman.
A 52-year-old random woman.
And the 65-year-old driver.

Who is the youngest?

What happened when the wheel was invented?

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

In the figure, you can see nine stars. What you have to do is connect all of them by using just four line and without lifting your hand i.e. in a continuous flow.

How many words can a quill made with the feather of a pigeon write with a 100ml bottle of black ink?

It was a dark stormy night and a couple were in a car driving madly to a city. The car broke down and the husband had to go get help from someone who spoke his language. He was afraid to leave his wife alone in the car so he locked the car before leaving. When he came back, the car was in the same state as he had left it but his wife was dead, there was blood on the floor and there was a stranger in the car. What happened?

Eight of us go fourth, not back, to protect our king from an attack. What are we?