31% knows the answer to this question: "2012 marked the one-year anniversary of the death of which terrorist leader? "

And do you know the answer to this one? "Which invention, which contains mercury, was invented in 1724?"

40% knows the answer to this question: "The Tea Party are named after an event which took place in which American city during the late eighteenth century? "

And do you know the answer to this one? "What was the English King Richard I's nickname?"

65% knows the answer to this question: "In 1997, NASA's Pathfinder space probe lands on the surface of which planet? "

And do you know the answer to this one? "What U.S. state declared independence from Mexico in 1836?"

45% knows the answer to this question: "In which decade were robbers Bonnie and Clyde active? "

And do you know the answer to this one? "Amerigo Vespucci was a 16th century explorer from which country?"

79% knows the answer to this question: "Which is the complete name of famous businessman Onassis? "

And do you know the answer to this one? " The Euro Disney Resort officially opened in 1992 in what country?"

84% knows the answer to this question: "Which Queen of England celebrated her Diamond Jubilee in 2012? "

And do you know the answer to this one? "At a 1998 conference, what single currency did 12 European nations agree to adopt?"

74% knows the answer to this question: "The start of which year was known as Y2K? "

And do you know the answer to this one? "Which European city has the largest Roman amphitheatre in the world?"

70% knows the answer to this question: "What historic building might feature a crypt, altar and nave? "

And do you know the answer to this one? "Babe Ruth was a 1920s star in which sport?"

43% knows the answer to this question: "Amelia Earhart was the first woman to do what? "

And do you know the answer to this one? "Emperor Jiajing ruled in which country?"

51% knows the answer to this question: "What symbol did Crusaders wear on their clothes in the Middle Ages? "

And do you know the answer to this one? "Eva Peron was First Lady of which country?"

45% knows the answer to this question: "Who was a Fascist prime minister that came to power in 1922 and ruled Italy as an absolute dictator? "

And do you know the answer to this one? "What was the name of Germany's World War Two boat created by Admiral Karl Donitz?"

76% knows the answer to this question: "A Pharaoh was a ruler of which ancient land? "

And do you know the answer to this one? "In which US state did the Japanese attack Pearl Harbor in 1941?"