42% knows the answer to this question: "Which of the following was Jacques Cousteau best known as being? "

And do you know the answer to this one? "Which famous scientist was born in Germany in 1879, became a Swiss citizen in 1901 and later became a US citizen in 1940?"

65% knows the answer to this question: "What French King was beheaded by French revolutionaries in 1793? "

And do you know the answer to this one? "How many stars were on the US flag when Bill Clinton left office?"

76% knows the answer to this question: "The 1851 novel 'Moby Dick' is about which type of animal? "

And do you know the answer to this one? "What sort of ships are the Vikings famously known to have used?"

76% knows the answer to this question: "In 2013, Hassan Rouhani became the new President of which country? "

And do you know the answer to this one? "Which former Prime Minister of Israel died in 2014?"

30% knows the answer to this question: "Which form of transportation was invented first? "

And do you know the answer to this one? "Which of these was one of Abraham Lincoln's nicknames?"

79% knows the answer to this question: "Of these, which was a world leader in the 80s? "

And do you know the answer to this one? "Simone de Beauvoir was born in which country?"

51% knows the answer to this question: "Which is the complete name of former US Secretary of State Kissinger? "

And do you know the answer to this one? "In what Asian city is Tiananmen Square, which became known in 1989 as a protest site, located?"

88% knows the answer to this question: "What was the name of the woman who was married to Adolf Hitler for less than 40 hours? "

And do you know the answer to this one? "Who was J. Edgar Hoover?"

90% knows the answer to this question: "What day did Thomas Jefferson die? "

And do you know the answer to this one? "A plaque at whose grave reads "No me llores," which means "don't cry for me"?"

87% knows the answer to this question: "What sort of ships are the Vikings famously known to have used? "

And do you know the answer to this one? "Parker and Barrow were the surnames of what infamous couple?"

43% knows the answer to this question: "The Anglo-Zulu war took place on which continent? "

And do you know the answer to this one? "Catherine of Aragon was the first wife of which English king?"

93% knows the answer to this question: "What metal was discovered in the Klondike in 1896? "

And do you know the answer to this one? "Which war is also called the Great War? "