50% knows the answer to this question: "Which of these scientific terms is defined as the solid surface layer of a planet or moon? "

And do you know the answer to this one? "A kind of protective covering for the body is a called what?"

55% knows the answer to this question: "Which of these is a real place? "

And do you know the answer to this one? "Which best describes the Great Barrier Reef?"

72% knows the answer to this question: "Situated on the southern slopes of the Pyranee Mountains, Andorra boasts which capital city? "

And do you know the answer to this one? "What was the Bill which gave parliament more control over taxes and limited the sovereigns power, called?"

90% knows the answer to this question: "One thousand years ago, 'samurai' were the warrior class of which country? "

And do you know the answer to this one? "What is the name of the protein found in wheat flour?"

83% knows the answer to this question: "What is another name for a cellar? "

And do you know the answer to this one? "Which ancient civilization built pyramids to house the bodies of their dead pharaohs?"

40% knows the answer to this question: "What does the "e" stand for in email? "

And do you know the answer to this one? "Lee Harvey Oswald was charged with assassinating which US President?"

31% knows the answer to this question: "NASA released which famous photo of Mars in 1976? "

And do you know the answer to this one? "What country in North America with Washington, DC as its capital uses the dollar as its currency?"

58% knows the answer to this question: "The acronym "EU", when referring to a group of European nations, stands for what? "

And do you know the answer to this one? "What animal has two humps and originates in the deserts and steppes of Asia?"

57% knows the answer to this question: "Who owns the factory in the book "Charlie and the Chocolate Factory"? "

And do you know the answer to this one? "Which country has the largest population?"

56% knows the answer to this question: "Ischaemic strokes are caused by a lack of what flowing to the brain? "

And do you know the answer to this one? "A square of what every day is said to be good for the heart?"

92% knows the answer to this question: "Pablo Picasso is known for being which one of the following? "

And do you know the answer to this one? "On which continent is the nation of Spain located?"

78% knows the answer to this question: "Where did "Old Mother Hubbard" look for a bone? "

And do you know the answer to this one? "In a 2011 single, Maroon 5 claimed to have "moves like" which member of the Rolling Stones?"