88% knows the answer to this question: "Who wrote "David Copperfield"? "

And do you know the answer to this one? "If you leave at 12:15 on a trip that takes 1 hour and 45 minutes, at what time do you arrive?"

85% knows the answer to this question: "Which country with a total area of 1,001,450 square kilometers has Cairo as its capital city? "

And do you know the answer to this one? "Which of these "pies" is a Don McLean song that may be about Buddy Holly, but is absolutely not the name of Holly's last plane?"

85% knows the answer to this question: "In what film must Keanu Reeves remove a bomb from a city bus? "

And do you know the answer to this one? "Which word is spelled wrong?"

34% knows the answer to this question: "What character's size 6B ruby slippers sold for $165,000 at auction in June 1988? "

And do you know the answer to this one? "What Khmer capital was reclaimed by the jungle sometime after the Thais conquered it in 1431?"

39% knows the answer to this question: "Helmut Kohl was Chancellor of which European giant? "

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

55% knows the answer to this question: "I'm an Olympic swimmer who won 22 medals. Who am I? "

And do you know the answer to this one? "I was once in the Beatles and I worked with Kanye West in 2014. Who am I?"

51% knows the answer to this question: "Ableskiver is an apple pancake from what country? "

And do you know the answer to this one? "What river forms the boundary between Texas and Mexico?"

44% knows the answer to this question: "Brian May is a guitarist from which band? "

And do you know the answer to this one? "For complicated legal reasons, who recorded as himself on Coral at the same time as he recorded as the Crickets with Brunswick?"

62% knows the answer to this question: "Which of the Beatles married a woman whose name means "ocean child" in Japanese? "

And do you know the answer to this one? "Who was Louis XVI?"

40% knows the answer to this question: "Which of these was a famous Native American chief? "

And do you know the answer to this one? "Who seized power of Libya in 1969 in a bloodless military coup?"

32% knows the answer to this question: "Get two voices and you have a zwoarer. Get three and it's a dreier. Either way, you're likely in the Alps. What is it? "

And do you know the answer to this one? "What would you do to a bucket of sand and water to separate one from the other?"

52% knows the answer to this question: "What was the name of the Roman god of the sea? "

And do you know the answer to this one? "In which country did the first zeppelin flight occur?"