What does this below rebus puzzle mean?

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

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?

The owner of a popular clothing store comes up with his own method of pricing items. A vest costs $8, socks cost $10, a tie costs $6, and a blouse costs $12. Using the owner’s method, how much would a pair of underwear cost?

Can you name some countries which do not have the alphabet 'A' in them?

By using 'because' continuously three times, can you make an English statement ?

why number 8549176320 is one of a kind?

Can you find the ages of a son, father and grandfather based on the following facts?
The sum of the ages of grandfather, father and son is 140 years.
The age of the son in months is the same as the grandfather in years.
The age of the son in days is the same as the father in weeks.

A bomb exploded in a room full of married couples and no one died. How?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?