52% knows the answer to this question: "What type of "curtain" divided communist Europe from western Europe? "

And do you know the answer to this one? "What is the system consisting of the Earth's sun and the eight planets orbiting it called?"

64% knows the answer to this question: "The Cape Colony's chief gemologist said that Schalk van Niekerk's diamond was just a pebble. Where was he? "

And do you know the answer to this one? "Three tiny bones called ossicles are nicknamed the hammer, anvil and stirrup. And they are indispensable. To what?"

95% knows the answer to this question: "In which of these countries could you see the big five safari animals? "

And do you know the answer to this one? "Which animal is not a mammal?"

63% knows the answer to this question: "In the 2007 movie "Ratatouille", Remy is what kind of animal? "

And do you know the answer to this one? "Which of these golden titles is not the title of a James Bond movie?"

53% knows the answer to this question: "Which of these is a 1957 song by Dale Hawkins? "

And do you know the answer to this one? "During which civil war did the battle of 'Gaines' Mill' take place?"

45% knows the answer to this question: "Which hot green paste, often served with sushi and sashimi, is called "Japanese Horseradish"? "

And do you know the answer to this one? "Who beat Katy the Kangaroo to become the mascot of Kellogg's Frosted Flakes?"

85% knows the answer to this question: "Where was the hottest ever temperature in the US recorded in 2013? "

And do you know the answer to this one? "The book "The Time Machine" was written by whom?"

81% knows the answer to this question: "Who "left the building" ... for good ... after his last concert, on June 26, 1977, at Market Square Arena in Indianapolis? "

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?"

68% knows the answer to this question: "In November of 1994, a letter by Ronald Reagan announcing that he has what disease was released? "

And do you know the answer to this one? "A unit of measure relates cars to the power of what?"

70% knows the answer to this question: "What kind of animal provides meat frequently used in Mexican cooking? "

And do you know the answer to this one? "The Champs-Élysées is a famous part of which European city? "

71% knows the answer to this question: "What nationality was Yoko Ono, who married John Lennon in 1969? "

And do you know the answer to this one? "Which city is a key town for the Muslim, Jewish and Christian faiths?"

39% knows the answer to this question: "What are whale nostrils called? "

And do you know the answer to this one? "What country's symbols include the sakura (cherry blossom) and the kiji (pheasant)?"