33% knows the answer to this question: "Which of these was a hit single for The Mamas & the Papas in 1966? "

And do you know the answer to this one? "Which record company was founded in Detroit by Berry Gordy, Jr, a former boxer, who applied many of the business techniques he'd seen working on the Ford assembly line?"

54% knows the answer to this question: "What was the head of state in Iran called before the revolution of 1979? "

And do you know the answer to this one? "What phrase can refer to June in Jaipur, or to a warm spell in late autumn in North America?"

30% knows the answer to this question: "In 2007 Fergie had a hit with "Big Girls Don't..."? "

And do you know the answer to this one? "Finish this line of Gerry Goffin and Carole King lyrics: "Everybody's doin' a brand new dance now - (C'mon baby ___________"."

65% knows the answer to this question: "Anne Boleyn and Catherine Howard were married to which English king? "

And do you know the answer to this one? "Where on the Earth would oceans be warmer?"

77% knows the answer to this question: "What brother-sister team was the top-selling musical act through the 1970s? "

And do you know the answer to this one? "Originally planned for Boulder Canyon, what dam in the Black Canyon created Lake Mead?"

83% knows the answer to this question: "The Dutch East India Company founded a station in what African country, establishing a settlement? "

And do you know the answer to this one? "New Orleans and San Francisco have the only National Historic Landmarks that move. What are they?"

46% knows the answer to this question: "What device consists of one or more cells that produce direct current? "

And do you know the answer to this one? "What organ has two chambers called atriums and two chambers called ventricles?"

84% knows the answer to this question: "Which of the following is a well-known Japanese condiment? "

And do you know the answer to this one? "Which is the app that diagnoses you with an illness according to your symptoms?"

49% knows the answer to this question: "What is a natural fiber reeled from the cocoon of a worm? "

And do you know the answer to this one? "Where is Bordeaux, whose Premier Cru table wines are among the world's best: Chateau Mouton-Rothschild, Chateau Lafite-Rothschild, Chateau Latour, Chateau Margaux and Chateau Haut-Brion?"

40% knows the answer to this question: "Someone who worked in a tannery used which type of material? "

And do you know the answer to this one? "Hawkeye and Trapper John were characters on what popular TV series which debuted in 1972?"

59% knows the answer to this question: "What is the capital city of Antarctica? "

And do you know the answer to this one? "What country bombed Pearl Harbor in World War II?"

73% knows the answer to this question: "Which of these foods is in the vegetables group? "

And do you know the answer to this one? "In what country's McDonald's are you most likely to find chicken tatsuta, a fried chicken sandwich spiced with soy sauce and ginger?"