I AM LIGHTER THAN AIR BUT A MILLIOM MEN CANNOT LIFT ME RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

It's air Did you answer this riddle correctly?
YES  NO  

A scent or smell. A scent is important to both humans and animals and both search for scents (for different reasons). A scent travels through the air to benefit humans and animals, again, for different reasons. Did you answer this riddle correctly?
YES  NO  

What is the easiest way to throw a ball, and have it stop, and completely reverse direction after traveling a short distance? Did you answer this riddle correctly?
YES  NO  

The Mesosphere Did you answer this riddle correctly?
YES  NO  

The troposphere Did you answer this riddle correctly?
YES  NO  

You don't bury survivors. Did you answer this riddle correctly?
YES  NO  

Because all the good ones are taken, and the rest are handicapped. Did you answer this riddle correctly?
YES  NO  

You need One, but you're not quite sure why. Did you answer this riddle correctly?
YES  NO  

Oxygen Did you answer this riddle correctly?
YES  NO  

There are 24 coins on the plane. (Get it heads or tails) Did you answer this riddle correctly?
YES  NO  

He has a private HAREplane! Did you answer this riddle correctly?
YES  NO  

Married couples Did you answer this riddle correctly?
YES  NO  

In A Plane Did you answer this riddle correctly?
YES  NO  

Turn 30. Did you answer this riddle correctly?
YES  NO  

The plane ticket. Did you answer this riddle correctly?
YES  NO