58% knows the answer to this question: "Who famously defeated Bobby Riggs in a televised tennis match in Texas in 1973? "

And do you know the answer to this one? "What element is common to the nicknames of William Frederick Cody and James Butler Hickok?"

56% knows the answer to this question: "'Go chase yourself!', this means ..? "

And do you know the answer to this one? "We can 'ankle' off to a new locale. What does ankle mean in this sentence? "

54% knows the answer to this question: "In 2014, the African National Congress was again triumphant in which country's general election? "

And do you know the answer to this one? "What was a charter of liberties given in England by King John in 1215 rather than face civil war?"

31% knows the answer to this question: "Which of these tourist attractions is the oldest? "

And do you know the answer to this one? "The eruption of a volcano on the island of Thera (Santorini) is sometimes held to have inspired what destroyed civilization?"

49% knows the answer to this question: "Which of these country's citizens is most likely to complain about the political goings on at "Number Ten"? "

And do you know the answer to this one? "Which of the following is a type of cloud?"

80% knows the answer to this question: "How tall is the tallest mountain in the USA? "

And do you know the answer to this one? "Which labor union led a five-month coal-related strike in 1902?"

84% knows the answer to this question: "Of Gujarati descent, Ben Kingsley played what Indian leader in a film with the same name? "

And do you know the answer to this one? "In the movie "Bright Eyes," who sang "The Good Ship Lollipop"?"

37% knows the answer to this question: "What food might your doctor prescribe as a remedy for urinary tract infection? "

And do you know the answer to this one? "Zoophobia is the fear of what?"

53% knows the answer to this question: "The coccyx is also known as what? "

And do you know the answer to this one? "At least how long should the warm-up in your physical training session last?"

75% knows the answer to this question: "What do you call horizontal movement of water? "

And do you know the answer to this one? "Which Portuguese explorer was the first to reach India?"

78% knows the answer to this question: "Which is true about bats in caves? "

And do you know the answer to this one? "Which pair of animal species and type is correct?"

72% knows the answer to this question: "Which kind of crops were developed for commercial use in the 90s? "

And do you know the answer to this one? "What song has the line, "Lord Almighty, I feel my temperature rising, higher higher, it's burning through to my soul"?"