81% knows the answer to this question: "Which leader of China died in 1976? "

And do you know the answer to this one? "In 2014, Bohuslav Sobotka became the Prime Minister of which Eastern European country?"

54% knows the answer to this question: "In November 1981, IBM introduced the IBM PC, what is a "PC"? "

And do you know the answer to this one? "Which artist is generally considered to be the father of contemporary country music?"

51% knows the answer to this question: "In 1986 July 4th was the celebration of how many years of Independence? "

And do you know the answer to this one? "What city did Jack the Ripper terrorize in 1888?"

71% knows the answer to this question: "Who is considered the father of medicine who is credited with an oath that is still pronounced by young physicians that establishes the fundamental principles of the discipline? "

And do you know the answer to this one? "Enrique Pena Nieto became President of which country in 2012?"

71% knows the answer to this question: "Angry that Kim Chol was partying during the grieving period for Kim Jong-il, who not only had the minister executed, but blew him away with a direct mortar round strike? "

And do you know the answer to this one? "On 13 June 1990, what did the East German military officially begin doing?"

42% knows the answer to this question: "In 2014, the African National Congress was again triumphant in which country's general election? "

And do you know the answer to this one? "Roman men wore togas and Roman women wore what?"

82% knows the answer to this question: "What was the name of the Russian jeweler who became famous for his ornate Easter eggs made of precious metals and gemstones? "

And do you know the answer to this one? "Of these, which was a world leader in the 80s? "

50% knows the answer to this question: "Which form of transportation was invented first? "

And do you know the answer to this one? "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?"

45% knows the answer to this question: "What was the maiden name of Princess Diana? "

And do you know the answer to this one? "Poseidon was the Greek god of what?"

38% knows the answer to this question: "Spartacus was set in which empire? "

And do you know the answer to this one? "In the 1250s, the Little Ice Age began, precipitating the Great Famine from 1315-22, which left Europe medically vulnerable to what epidemic from 1347-51?"

63% knows the answer to this question: "On what Japanese cities did the U.S. drop atomic bombs in 1945? "

And do you know the answer to this one? "What is the second largest city in Russia, founded by Tsar Peter the Great in 1703?"

87% knows the answer to this question: "After the Cuban Revolution of January 1959, who assumed power? "

And do you know the answer to this one? "Who became Palestine's first President in 1996?"