There is something which is always coming but never arrives?

What is the riddle which can be asked all day with a different correct answer each time.

What is both possible and impossible at the same time?

How can you make a TV, a bed, a dog, and a car liquid?

If Rajina's daughter is my daughter's mom, who am I to Rajina?

It is a nine-letter word.
The exact opposite of the phrase "friendly and outgoing"
It contains the word "over".
It starts will a vowel.

What is it?

Bay of Bengal is in which state?

If,

A + B = C
D - C = A
E - B = C

Based on the above equations, find out the answer for:

D + F = ?

Samuel was out for a walk when it started to rain. He did not have an umbrella and he wasn't wearing a hat. His clothes were soaked, yet not a single hair on his head got wet. How could this happen?

I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?