What number when divided in half becomes zero?

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.

In a picnic session, a footballer was practicing. During his play, he busted lips and ears and broke ribs and thighs. However, he was still able to play a professional match on the very next day.



How can this be possible?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

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

Who always enjoys poor health?

When it's bad luck to meet a black cat?

How many words can a quill made with the feather of a pigeon write with a 100ml bottle of black ink?

1. How can we put an elephant in the refrigerator?
2. How can we put a Giraffe in a refrigerator?
3. The king of the jungle invites all the animals to a party everyone comes except for one animal, which animal?
4. You come to a crocodile-infested lake, you can't go around it, you can't co under it and you can't go over it, how do you get across?

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?