What is the below Rebus indicate?

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?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

A charming young lady was approached by a kind looking old woman in a restaurant. The old woman said to her, 'You look exactly like my younger daughter. Sadly she passed away a couple of months back. Could you do me a favor and say 'Goodbye, mother' with a kind smile on your face when I leave?

The young lady agreed for the same and said, 'Goodbye, mother' when the old woman left. Soon after, she got the most disengaging shock of her life.

Can you guess what the shock was?

It is always ahead of me yet I can never see it. What is it?

Can you spot the man between the coffee bean in the picture below ?

You board a train. The train will have to enter a tunnel soon. You are claustrophobic. Which place is the best for you to sit?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?