40% knows the answer to this question: "Physician, ... thyself "

And do you know the answer to this one? "Less is …"

73% knows the answer to this question: "The first TV video games console was invented in which decade? "

And do you know the answer to this one? "Modern paper was invented by Cai Lun from which country?"

33% knows the answer to this question: "Which actor was the first African-American to win an Academy Award? "

And do you know the answer to this one? "What was the occupation of 1960s celebrity Twiggy?"

46% knows the answer to this question: "Because it is covered in iron oxide dust, what color does Mars appear to be from earth? "

And do you know the answer to this one? "Which of the following is a small organism that can make your body sick?"

54% knows the answer to this question: "What Roman town was destroyed by the eruption of Mt. Vesuvius? "

And do you know the answer to this one? "Which American singer was born in 1979?"

42% knows the answer to this question: "What country did Charles de Gaulle become president of after World War II? "

And do you know the answer to this one? "What city did Jack the Ripper terrorize in 1888?"

94% knows the answer to this question: "Of these, which is a country music singer born in 1983? "

And do you know the answer to this one? "What accessory did Zippo Manufacturing Company introduce in 1933?"

55% knows the answer to this question: "What is a map that shows an area's shape and elevations called? "

And do you know the answer to this one? "When this gets cold, its molecules pack together into four-sided tetrahedrons. These tetrahedrons require more space, so what expands on freezing?"

61% knows the answer to this question: "What is the original word we have changed in this famous movie quote? "Mrs. Penguin, you're trying to seduce me. Aren't you?" "

And do you know the answer to this one? "What Marilyn Monroe movie gets its name from the nursery rhyme Pease Porridge Hot?"

40% knows the answer to this question: "What does the rating "E" stand for when a video game is playable for all ages? "

And do you know the answer to this one? "What kind of bird do you often see sitting on the back of the rhinoceros?"

91% 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? "Who was prime minister of Britain through most of World War II?"

32% knows the answer to this question: "The Kievan Rus were overwhelmed by the Golden Horde, which included what Turkic people, who share their name with both a sauce that's tasty on fish, as well as with the hard stuff that builds up on your teeth, if you don't brush afterward. What is it? "

And do you know the answer to this one? "Which country's parliament removed Viktor Yanukovych as President in 2014?"