83% knows the answer to this question: "What year did the nuclear-related accident at Three Mile Island occur? "

And do you know the answer to this one? "Who co-invented the Geiger counter in 1908 with Ernest Rutherford?"

34% knows the answer to this question: "Of these, which is a web-based entrepreneur born in 1984? "

And do you know the answer to this one? "Which country launched the health care exchange for its Affordable Care Act in 2013?"

72% knows the answer to this question: "After the Battle of Hastings, what did William become known as? "

And do you know the answer to this one? "British and German troops facing each other in Flanders declared a spontaneous and unofficial Christmastime truce in 1914, during what war?"

89% knows the answer to this question: "In what war was the 'Battle of Nashville'? "

And do you know the answer to this one? "What country did Czar Nicholas lead?"

83% knows the answer to this question: "Who said 'That's one small step for man; one giant leap for mankind'? "

And do you know the answer to this one? "Which country did Iraq invade in 1990, leading to the First Gulf War? "

36% knows the answer to this question: "What function did the Ancient Egyptian pyramid's perform? "

And do you know the answer to this one? "From What disease did the Romantic poet John Keats die?"

79% knows the answer to this question: "Boris Yeltsin was President of which country between 1991 and 1999? "

And do you know the answer to this one? "Which American invented the light bulb?"

45% knows the answer to this question: "What country's unstable Fourth Republic had more than 20 governments from 1946 until Charles de Gaulle returned to politics and replaced it with the Fifth Republic? "

And do you know the answer to this one? "In 2014, the International Court of Justice ruled that what country should stop its whaling program?"

41% knows the answer to this question: "Prince William of the UK married whom in 2011? "

And do you know the answer to this one? "Who was the Prime Minister of Great Britain at the beginning of World War II?"

85% knows the answer to this question: "What does OPEC stand for? "

And do you know the answer to this one? "What are the Russian 19th and 20th century jeweller Peter Faberge's most famous creations shaped like?"

39% knows the answer to this question: "What dynasty built most of the present-day Great Wall of China as a way to keep out the Mongols? "

And do you know the answer to this one? "Achilles is the mythical hero protagonist of Iliad and other Greek legends. Despite being almost invulnerable, had only one weakness. Which one?"

91% knows the answer to this question: "In 1970, Alan Shugart was credited with which invention/discovery? "

And do you know the answer to this one? "What did bacteriologist Alexander Fleming credited with discovering on a piece of bread in 1928?"