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

One of the leprechaun is missing if you see the two pictures attached to this question. Where did he go? When he comes back, do you know where has he been?

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?

A man has eighty-one cows ( numbered 1,2,3...81 as such). The beauty is that cow no. 1 gives 1ltr of milk, cow no. 2 gives 2ltrs of milk and so on. The man wants to equally distribute the cows among his nine sons so that each one of them gets the same quantity of milk.

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

Identify The phrase in the picture.

Can you find out the number that should replace the question mark with a valid reason?

A father's child, a mother's child, yet no one's son.

Who am I?