83% knows the answer to this question: "When a bit of sand gets trapped inside a shellfish, it fights the irritation with nacre, which it gets from calcite in seawater. What treasure results? "

And do you know the answer to this one? "What is the name of the holes in the nose?"

30% knows the answer to this question: "Delusions of Grandeur, wealth and power are known as what? "

And do you know the answer to this one? "H5N1, H7N9, H5N6 and H5N8 are strains of which common illness?"

70% knows the answer to this question: "A vaccine to prevent what terrible disease was invented in the U.S. in 1952? "

And do you know the answer to this one? "What two colors make up the Canadian flag?"

40% knows the answer to this question: "Christmas cake usually contains what? "

And do you know the answer to this one? "The seeds of which tree are used to make chocolate?"

68% knows the answer to this question: "What piece of hardware does Ash Williams strap to his freshly severed arm in "Evil Dead II"? "

And do you know the answer to this one? "Christian Bale starred in which 2015 biopic?"

53% knows the answer to this question: "What is the name of the first mammal to be successfully cloned from an adult cell? "

And do you know the answer to this one? "What is the state capital of Hawaii?"

76% knows the answer to this question: "Who was a member of the conservative Likud party of Israel and was once Prime Minister? "

And do you know the answer to this one? "What number comes next in this sequence: 8, 16, 32, 64...?"

44% knows the answer to this question: "What US state is nicknamed "The Great Lakes state"? "

And do you know the answer to this one? "What is the outer layer of human skin called?"

43% knows the answer to this question: "What 132-room building would you find at 1600 Pennsylvania Avenue? "

And do you know the answer to this one? "The title of 1950's Best Movie at the Oscars was "All About" who?"

36% knows the answer to this question: "Who was for her humanitarian and charity work? "

And do you know the answer to this one? "It is said that a full 7% of the entire Irish barley crop goes to the production of what beer, called liquid bread and a meal in a glass?"

80% knows the answer to this question: "Who sang the famous song "Just Can't Get Enough (live)" (1985) "

And do you know the answer to this one? "Who sang the famous song "Baby Can I Hold You" (1988)? "

56% knows the answer to this question: "Coffee mixed with whiskey and topped with whipped cream is called what? "

And do you know the answer to this one? "What links the White House with the Kremlin?"