Who discovered the law of gravity?
How many teeth should an adult human have, including wisdom teeth?
How many bones are there in the human body?
What other name was given to the Plague?
Which tree produces conkers?
Who invented cats eyes for use on the roads?
What are cumulus, cirrus and stratus all types of?
True or false: the small intestine is longer than the large intestine?
What do the letters DNA stand for?
What is the name of the man who discovered penicillin?