30% knows the answer to this question: "What is the name of the American newspaper heiress who was kidnapped by the Symbionese Liberation Army, an urban militant group she later joined, in 1974? "

And do you know the answer to this one? "In 1999, there was a bad nuclear accident in Japan, exposing dozens to what?"

30% knows the answer to this question: "What famous British ocean liner hit an iceberg and sank in 1912? "

And do you know the answer to this one? "What was co-invented by Samuel Morse in 1838?"

92% knows the answer to this question: "Which of these men led the Soviet Union? "

And do you know the answer to this one? "Who won the Nobel Peace Prize for his part in negotiating an end to US involvement in Vietnam?"

71% knows the answer to this question: "What role did Daniel Manning play in Grover Cleveland's cabinet in 1885? "

And do you know the answer to this one? "Anne Boleyn and Catherine Howard were married to which English king?"

53% knows the answer to this question: "What is the name of the first mammal to be successfully cloned from an adult cell? "

And do you know the answer to this one? "Who gave her son Prince Charles the customary title of Prince of Wales?"

84% knows the answer to this question: "What Egyptian regent is said to have had affairs with both Julius Caesar and Mark Antony? "

And do you know the answer to this one? "In what industry did John Davison Rockefeller get rich?"

44% knows the answer to this question: "During what War did the 1847 'Skirmish at Las Vegas' take place? "

And do you know the answer to this one? "Which country became the third nation to perform a space docking mission in 2012?"

90% knows the answer to this question: "Which people were bottom of the social scale in medieval society? "

And do you know the answer to this one? "The Romanovs were the royal family of which country?"

94% knows the answer to this question: "What sank the Lusitania in 1915? "

And do you know the answer to this one? "What was President Taft's first name?"

75% knows the answer to this question: "What is the name of the Ukrainian power plant where a major nuclear accident occurred in 1986? "

And do you know the answer to this one? "Which country attacked the secessionist Republic of Chechnya in 1994?"

51% 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 war did Muhammad Ali famously refuse to fight in?"

78% knows the answer to this question: "What is the name of the military academy which stands above the Hudson River in New York? "

And do you know the answer to this one? "The Indianapolis 500 was first staged in 1911. What kind of sporting event is it?"