There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

How many triangles can you find in this given picture?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

What seven-letter word has hundreds of letters in it?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

Three friends named Mr. Black, Mr. Yellow and Mr. Green enter a pub on a weekend night. They are wearing either a Black, Yellow or Green shirt.

Mr. Yellow says to them, 'Did you notice that we all are wearing different color shirts than our names?'

To this, the man who was wearing the Green shirt said. 'Wow, thats right.'

Can you identify who is wearing which colour shirt ?

Five thieves looted a bank and they ran away in a car. The bank staff informed the police and they began the search of their car in their jeep. They found them on a road and chased them eventually catching them. The light that is used to fill the number plate was broken on the thieves' car. Also, the headlights of the jeep police were not working. How were the police able to catch the thieves then?

Replace the question mark with the number below given a simple math problem.

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.

Who has married many women but was never married?