46% knows the answer to this question: "What is the name of the large freshwater marsh that covers much of southern Florida? "

And do you know the answer to this one? "What unit of measurement is equal to 43,650 square feet?"

80% knows the answer to this question: "What is the small stick used to hold foods together while grilling called? "

And do you know the answer to this one? "In October 2010, what website leaked around 400,000 classified military documents relating to the Iraq War?"

59% knows the answer to this question: "What song was based on three men Carly Simon knew in the 1970s, one of whom was Warren Beatty? "

And do you know the answer to this one? "Which of these is a common North American bird with a red-orange chest?"

53% knows the answer to this question: "Janet Reno, Michael J Fox, Muhammad Ali and John Paul II all suffered from what disease? "

And do you know the answer to this one? "Which war began on 25th June 1950?"

60% knows the answer to this question: "What country is bordered by Somalia, Ethiopia, Tanzania and Uganda? "

And do you know the answer to this one? "People in what country started eating rat sour soup, fried rat, curried rat and grilled rat once the rodents returned en masse to the Mekong Delta?"

54% knows the answer to this question: "What object, which debuted in 1949, is sometimes called a "45"? "

And do you know the answer to this one? "The Sino-Japanese war was fought between Japan and which country?"

46% knows the answer to this question: "In a 1965 movie, who uses a real-world Bell Aerosystems jet pack to escape from a chateau to his Aston Martin DB5? "

And do you know the answer to this one? "Which Hollywood film director fled to France in 1978?"

88% knows the answer to this question: "In what country was Mahatma Gandhi born? "

And do you know the answer to this one? "What kind of astronomical body is officially known as IP/Halley?"

85% knows the answer to this question: "What New York park is home the Metropolitan Museum of Art (on Fifth Avenue), its own zoo, a meteorological observatory and a former arsenal? "

And do you know the answer to this one? "On what continent do the borders of Botswana, Namibia, Zambia and Zimbabwe meet at a single point called the Four Corners Heartland?"

93% knows the answer to this question: "Pregnancy in humans lasts how many days? "

And do you know the answer to this one? "What group of animals is warm-blooded and has fur or hair?"

42% knows the answer to this question: "Which of these is the name of a 1950s sitcom? "

And do you know the answer to this one? "What type of birds did the US army stop using to carry messages in 1957?"

69% knows the answer to this question: "What best selling book is about an actor who searches for his mysterious father? "

And do you know the answer to this one? "Which is the name of a wooden club that is used to strike a wood carving chisel?"