using four eights (8) and a one (1) and one mathematical symbol , create the number 100

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.

Suppose you are a girl candidate and sitting in an interview. Suddenly the interviewer asks you, 'What if one morning you wake up and find out that you are pregnant?

How will you reply to such a question?

A sundial has the fewest moving parts of any timepiece. Which has the most?

Find the hidden tiger in the given optical illusion ?

If 1+9+8=1, what is 2+8+9?

In The 1st month of this year(the year 2013), I noticed that the date 13-1-13 (13 January 2013) is special.

This date is special as:

Date * Month = Year.

Can you figure out which year of this century has a maximum number of such dates?

What has many teeth, but cannot bite?

I am quite hot but become too cold if you remove the first two letters. What am I?

Which Burger Is Different in below image?