62% knows the answer to this question: "Which fruit is used to make prunes? "

And do you know the answer to this one? "What are meat-eaters that live in northern Canada called?"

89% knows the answer to this question: "In 2013, Russia arrested a group of protestors from which environmentalist group? "

And do you know the answer to this one? "In what U.S. state are the cities of Philadelphia, Pittsburgh and Harrisburg located?"

76% knows the answer to this question: "What is a million divided by two? "

And do you know the answer to this one? "The Roman numeral system has no expression for which number?"

44% knows the answer to this question: "The Nile River runs through which of these countries? "

And do you know the answer to this one? "Which mathematical term means limitless?"

66% knows the answer to this question: "Diana Ross fronted which group? "

And do you know the answer to this one? "Which band, fronted by Brian Wilson, created "Good Vibrations" in the 1960s?"

85% knows the answer to this question: "Which single of The Bangles features hieroglyphics on the cover? "

And do you know the answer to this one? "Which of the following dances did not influence the development of disco?"

58% knows the answer to this question: "Johannes Meyer and Johannes Rissik founded Johannesburg, which they appear to have named for themselves. Where is it? "

And do you know the answer to this one? "In the 1940s, the US Army Meteorological Service started naming these for women. But as of May 12, 1978, you could also name them for men. What are they?"

72% knows the answer to this question: "Which US president was nicknamed 'Ike'? "

And do you know the answer to this one? "Vietnam is located on which continent?"

62% knows the answer to this question: "Which flag, used by pirates, featured a skull and cross-bones? "

And do you know the answer to this one? "What bear feeds almost entirely on bamboo?"

74% knows the answer to this question: "The 1836 Battle of the Alamo pitted Texans against who? "

And do you know the answer to this one? "What was the nickname of Ivan, first Tsar of Russia?"

62% knows the answer to this question: "What type of "curtain" divided communist Europe from western Europe? "

And do you know the answer to this one? "What is the system consisting of the Earth's sun and the eight planets orbiting it called?"

34% 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? "Where did Napoleon Bonaparte suffer his last defeat?"