Can you find the odd one out from the below words ?

First Second Third Forth Fifth Sixth Seventh, Eighth Nine Ten Eleven Twelve.

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

What does a man do only once in his lifetime, but women do once a year after they are 29?

Find out which of the given views in the picture is accurately the top view of the given pyramid.

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

Can you find the thief by just looking at the picture below?

What building has the most stories?

There are people and strange monkeys on this island, and you can not tell who is who (Edit: until you understand what they said - see below). They speak either only the truth or only lies.
Who are the following two guys?
A: B is a lying monkey. I am human.
B: A is telling the truth.

My grandson is about as many days as my son in weeks, and my grandson is as many months as I am in years. My grandson, my son and I together are 120 years. Can you tell me my age in years ?

On a charity event in Russia, Murray beat Djokovic by winning six games and losing three games.
Note: There is a total of 5 service breaks(one who serve lost the game).
Who served first, Djokovic or Murray?