Solve this riddle by finding the odd one out from the rest.

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.

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

Why do people go to bed?

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

What is wrong in the below Picture?

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

There was a minor accident with a doctor's son but the doctor noticed no major injury. After the treatment, the father of that doctors son is sitting with the son of the doctor without the doctor being in the room.

How can this be possible?

If you drop a 15 kg iron bar and a 5 kg bag of cotton from a height of 50 meters which will reach the ground first?