What does an Island and the letter T have in common?

What does it mean?

What number when divided in half becomes zero?

1 rabbit saw 9 elephants while going to the river. Every elephant saw 3 monkeys going toward the river. Each monkey had 1 parrot in each hand. How many animals are going towards the river?

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?

A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?

There are six people in a family namely M, N, O, P, Q and R.

R and O are brother and sister.

N is the brother of Q's husband.
P is the father of M and grandfather of R.

How many male members are in the family?

I am a type of word that is spelt incorrectly or used differently, on purpose for humour. What am I?
Hint 1: You can find me in a joke.
Hint 2: I am a play on words.

Find the last number in the series below:

voN luJ yaM raM ---

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?