If eleven plus two equals one, what does nine plus five equal?

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

What does this rebus means ?

Which is Odd One Out and why?

4377

3954

9862

8454

9831

A blonde put eyeliner on her head. Why?

A man hijacks an aeroplane transporting both passengers(8 of them) and valuable cargo. After taking the cargo, the man demands nine parachutes, puts one of them on, and jumps, leaving the other eight behind. Why did he want eight?

Doctor Alex and a bus driver John are both in love with the same woman named Olivia. The bus driver need to go for a long trip of 10 days, Before he left he gave Olivia 10 apples.

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.

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

What has to be broken before you can use it?