33% knows the answer to this question: "Why was the Great Wall of China built? "

And do you know the answer to this one? "Who invented a system of raised dots, allowing blind people to read?"

69% knows the answer to this question: "In what year did France and Britain declare war on Germany? "

And do you know the answer to this one? "In 2013, China announced an air defense zone that overlapped with that of what country?"

34% knows the answer to this question: "What monarch made repeated visits to the front throughout WWI, earning him the deep respect of his subjects? "

And do you know the answer to this one? "What is a famous statue in Egypt that has the body of a lion and the head of a man?"

88% knows the answer to this question: "Which of these was a kind of balloon invented in 1783? "

And do you know the answer to this one? "Which rodent is also called a groundhog?"

79% knows the answer to this question: "To which food groups do a hot dog and a bun belong? "

And do you know the answer to this one? "The silk and husks should be removed from which of these vegetables before it is eaten?"

47% knows the answer to this question: "What word is missing from the Anne Frank quote "What is done cannot be ..."? "

And do you know the answer to this one? "Who invaded England in 1066?"

91% knows the answer to this question: "George Tupou V, the King of what Polynesian country, died in 2012? "

And do you know the answer to this one? "Which 'B' is a mountain peak in Scotland?"

63% knows the answer to this question: "Which of these animals is a small, burrowing mammal with a protective bony shell? "

And do you know the answer to this one? "The killer whale is also referred to by what other name?"

79% knows the answer to this question: "What country did King Hussein rule? "

And do you know the answer to this one? "Which is an app that lets you view millions of planes in transit in real time?"

42% knows the answer to this question: "Rice, soy sauce and fish sauce are traditional ingredients in what type of cooking? "

And do you know the answer to this one? "Who was the ruler of the Huns from 434-453 and was one of the most feared enemies of the Roman Empire?"

47% knows the answer to this question: "What science primarily concerns the study of living organisms? "

And do you know the answer to this one? "Which of these are large birds that nest on the ground?"

35% knows the answer to this question: "In 2012, which country held its first election following the death of Muammar Gaddafi? "

And do you know the answer to this one? "What animal is a large, flightless, nocturnal, solitary parrot from New Zealand?"