What does this Rebus Picture mean?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

Alpha is Beta's sister.

Gamma is a Beta mother.

Delta is Gamma's father.

Tango is Delta's mother.

Then,

How is Alpha related to Delta?

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?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

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?

There was a strange boy who was born before his father. How can this be possible?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

I have teeth but i don't bite. Who Am I ?

What is the largest number you can write with just 3 digits?