81% knows the answer to this question: "Microsoft developed what as email services became popular? "

And do you know the answer to this one? "I sang with my brother in the 1970's and we had a talk show in the 1990's, who am I?"

85% knows the answer to this question: "Which South African leader died in 2013? "

And do you know the answer to this one? "In the 2000s, Shigeo Obara used natural crossbreeding to produce an 18-leaf version of this plant, then a 56-leaf. What lucky plant is this?"

95% knows the answer to this question: "What playful word describes the fatty streaks found in meat? "

And do you know the answer to this one? "Which of the following is defined as a dramatic presentation by a visual artist before an audience?"

59% knows the answer to this question: "Which vegetables are named for the capital city of Belgium? "

And do you know the answer to this one? "What green vegetable do rabbits often eat?"

40% knows the answer to this question: "Who sang the famous song "Dancing In The Dark" (1984) ? "

And do you know the answer to this one? "Who sang the famous song "Georgia On My Mind" (1960) ?"

41% 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? "Which of the following would be classified as "performance art"?"

64% knows the answer to this question: "What Russian emperor put down the streltsi (a Moscow version of the Beefeaters) after they rebelled while he was abroad in 1690s? "

And do you know the answer to this one? "What adjective that describes people who are angrily resentful, is also a noun that defines beer that is strongly flavored with hops?"

64% knows the answer to this question: "Two famous single malts, Glenfiddich and the Glenlivet, come from Speyside. Where is this? "

And do you know the answer to this one? "Which TV series did butler 'Lurch' appear in?"

38% knows the answer to this question: "The isle of Ireland is nicknamed for this variety of beryl. Like Ireland, this gem is associated with tranquillity. (Hmmm ... maybe not.) What is it? "

And do you know the answer to this one? "Which species best matches this description: "rare and pale from the snowy central mountains of Asia"?"

86% knows the answer to this question: "What famous chapel used a sculptor for its ceiling, since it already had Renaissance superstars like Botticelli working on the walls? "

And do you know the answer to this one? "Chorizo is a type of what?"

95% knows the answer to this question: "The Zeppelin Staaken R.VI plane was used predominately by which country in World War I? "

And do you know the answer to this one? "The U.S. uses tons of what to melt roadway ice?"

39% knows the answer to this question: "Tourists often kiss what famous stone in Ireland? "

And do you know the answer to this one? "Lord Carnarvon mysteriously died of an infected mosquito bite, after financing Howard Carter's discovery of what person's allegedly cursed tomb?"