87% knows the answer to this question: "Pigmented birthmarks are usually which colour? "

And do you know the answer to this one? "What was the name of Agatha Christie's female detective?"

62% knows the answer to this question: "An app called Uber threatened what industry? "

And do you know the answer to this one? "50s writer Simone de Beauvoir was from which country?"

95% knows the answer to this question: "Who issues severe weather advisories in the U.S.? "

And do you know the answer to this one? "As Florida baseball fans may know, what sort of animals are marlins and devil rays?"

50% knows the answer to this question: "What band went from wanting to hold your hand in 1963 to suggesting that we "do it in the road" in 1968? "

And do you know the answer to this one? "On which album did the song 'Billie Jean' first feature?"

69% knows the answer to this question: "What might an English speaker call the people the French refer to as "mere" and "pere"? "

And do you know the answer to this one? "What are the official languages of Canada?"

60% knows the answer to this question: "What was discovered in the Yukon Klondike in 1896? "

And do you know the answer to this one? "Capable of 60-mile-per-hour bursts of speed, what is the world's fastest land animal over short distances?"

37% knows the answer to this question: "Your whole alimentary canal is about 9 m: roughly 7 m of that is the small intestine and 1.5 m is the large intestine. What does it help you do? "

And do you know the answer to this one? "How many CD racks does it take to hold 300 CDs if each rack holds 75 CDs?"

64% knows the answer to this question: "What day did Thomas Jefferson die? "

And do you know the answer to this one? "A plaque at whose grave reads "No me llores," which means "don't cry for me"?"

35% knows the answer to this question: "Who sang the famous song "A Horse With No Name" (1972) ? "

And do you know the answer to this one? "Who sang the famous song "Chimes Of Freedom" (1964)? "

47% knows the answer to this question: "First starring with Fred Astaire in his second movie, "Flying Down to Rio," who did everything he did, only backward and in high heels? "

And do you know the answer to this one? "What caused the Great Famine that struck Ireland in 1845?"

44% knows the answer to this question: "What does a "a wet sock" mean? "

And do you know the answer to this one? "Used in poison gas during WWI, what element today makes water much safer to drink?"

79% knows the answer to this question: "What is the heaviest breed of dog? "

And do you know the answer to this one? "Which word can be a synonym of "adequate"?"