79% knows the answer to this question: "What kind of vegetable can you buy a "head" of? "

And do you know the answer to this one? "Sam Panopoulous, a Greek-Canadian pizza maker, also claims to have invented what kind of pizza, even though pineapple is not especially either Greek or Canadian?"

91% knows the answer to this question: "Which city has the nickname 'The City by the Bay'? "

And do you know the answer to this one? "Which company is responsible for messages called Tweets?"

53% knows the answer to this question: "During what War did the 1847 'Skirmish at Las Vegas' take place? "

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

58% knows the answer to this question: "What is a very young plant called? "

And do you know the answer to this one? "From 1963 to 1973, what did the Board of Geographic Names call Cape Canaveral?"

35% knows the answer to this question: "In which US state is the compound of the town Waco, which was raided in 1993? "

And do you know the answer to this one? "Who won an Oscar for Best Actor for 1988's Best Picture "Rain Man"?"

75% knows the answer to this question: "Cranial nerves are found in which part of the body? "

And do you know the answer to this one? "Which of these terms refers to "peace in one's own nation"?"

71% knows the answer to this question: "Head chef George Crum didn't take criticism lightly. Supposedly, what food did he angrily invent after a customer complained his French fries were not thin enough? "

And do you know the answer to this one? "Leia was addressed by which regal title in the "Star Wars" films?"

87% knows the answer to this question: "What is the Windy City, either because of meteorology or because of the flapping gums of local political blowhards? "

And do you know the answer to this one? "In the 1920, Vienna physician Manfred Sakel treated drug addiction by deliberating inducing comas through overdoses of what diabetes-treating drug?"

47% knows the answer to this question: "Who is the well-known wealthy Greek entrepreneur who died in 1975? "

And do you know the answer to this one? "What Detroit soul music institution was founded by Berry Gordy in 1959?"

32% knows the answer to this question: "Who was the author of The Cat in the Hat? "

And do you know the answer to this one? "The prefixes hemo- and hema- refer to what?"

35% knows the answer to this question: "Complete the Petula Clark hit song title, "... Is My Song"? "

And do you know the answer to this one? "In what film did Kevin Costner play The Postman?"

86% knows the answer to this question: "What do levees, bunds and weirs help prevent? "

And do you know the answer to this one? "The atomic number represents the amount of what in an element?"