Did you know that 49% of the world population is made up of women? 

Arduous adj: hard to accomplish or achieve. 

Did you know that a crocodile cannot stick its tongue out? 

Pundit n: a learned person: teacher. 

Did you know that a glass ball will bounce higher than a rubber ball? 

Backstairs adj: a secret. 

Did you know that in every episode of Seinfeld there is a Superman somewhere? 

Vade Mecum n: a book for ready reference: manual. 

Did you know that wearing headphones for an hour can increase the bacteria in your ear by 700 times?