37% knows the answer to this question: "Where would you find Earth's longest river, the Nile? "

And do you know the answer to this one? "What was the first name of 1960s TV journalist Frost?"

42% knows the answer to this question: "It's only done to treat really extreme cases of epilepsy, but half of something is removed in a hemispherectomy. What? "

And do you know the answer to this one? "What day does Bill Murray repeat endlessly in a 1990s cult movie set in Punxsutawney, Pennsylvania?"

84% knows the answer to this question: "What street in New York is famous all over the world for its many theatres? "

And do you know the answer to this one? "Egyptian sphinxes have the head of a ram or a person and the body of what animal?"

33% knows the answer to this question: "In golf, what is the "apron"? "

And do you know the answer to this one? "Which of these US states has the lowest average rainfall?"

44% knows the answer to this question: "On what island did reggae supersede calypso in the 1970s, despite its radically political and religious Rastafarian connections? "

And do you know the answer to this one? "Which famous astronomer was born in Pisa in Italy in 1564?"

83% knows the answer to this question: "What kind of pie did Don McLean have a hit with in 1972? "

And do you know the answer to this one? "Who sang the famous song "I Heard It Through The Grapevine" (1969)"

43% knows the answer to this question: "What function did the Ancient Egyptian pyramid's perform? "

And do you know the answer to this one? "What music genre is most often associated with Carrie Underwood?"

45% knows the answer to this question: "What are wrinkles around the eyes and mouth as the result of aging commonly called? "

And do you know the answer to this one? "What is half of 98?"

93% knows the answer to this question: "A prison fire killed 300 people in what Central American country in 2012? "

And do you know the answer to this one? "To which famous Greek philosopher and legislator is the explanation of a universally known mathematical theorem commonly attributed?"

85% knows the answer to this question: "What group released the hit album 'Backstreet's Back' in 1997? "

And do you know the answer to this one? "Which of the following is an insect?"

53% knows the answer to this question: "What is a link between atoms in a molecule called? "

And do you know the answer to this one? "Which of the following is a small organism that can make your body sick?"

94% knows the answer to this question: "The first widely eaten salad in North America was popularised by the Dutch. It is made of raw shredded cabbage, what is it? "

And do you know the answer to this one? "What restaurant chain do the "Golden Arches" represent?"