99% knows the answer to this question: "What mineral makes up human bones? "

And do you know the answer to this one? "The definition of "a period of abnormally warm weather in mid to late autumn" best fits which science term?"

95% knows the answer to this question: "The Champs-Élysées is a famous part of which European city? "

And do you know the answer to this one? "In what US state is Philadelphia located?"

99% knows the answer to this question: "What was the name of the Duke who invaded England in 1066? "

And do you know the answer to this one? "If Ellen is 4 feet 10 inches tall and Rene is 4 feet 6 inches tall, how much taller is Ellen?"

97% knows the answer to this question: "In 1950 President Truman approved the construction of what type of bomb? "

And do you know the answer to this one? "Which of the following would be classified as "performance art"?"

99% knows the answer to this question: "Westminster Abbey opened in which European city in 1065 AD? "

And do you know the answer to this one? "Which country did Joan of Arc try to set free from English domination?"

98% knows the answer to this question: "Britain's Stonehenge is called a megalith because it is made of what? "

And do you know the answer to this one? "Who was Martin Luther King, Jr.?"

97% knows the answer to this question: "What river did the Ancient Egyptians build their civilization on? "

And do you know the answer to this one? "What South American country has taken its name from a famous line of latitude?"

98% knows the answer to this question: "In what country would you find a 2,021-mile Rabbit-Proof Fence and a 3,300-mile Dingo Fence? "

And do you know the answer to this one? "Which of these items will float in a glass of water?"

93% knows the answer to this question: "Bono is the singer of what rock group? "

And do you know the answer to this one? "What is 63 divided by 9?"

98% knows the answer to this question: "What is a drug or agent used to decrease the feeling of pain or eliminate the feeling of pain by putting you to sleep called? "

And do you know the answer to this one? "Complete the Dusty Springfield hit song title, "You Don't Have to Say You Love ..."?"

97% knows the answer to this question: "... is certain but death and taxes "

And do you know the answer to this one? "Which country's government is communist?"

98% knows the answer to this question: "What does protein do for your body? "

And do you know the answer to this one? "Which medical speciality involves the study of tiny organisms?"