69% knows the answer to this question: "Ola Nordmann and his wife Kari are what country's version of John Bull or Uncle Sam? "

And do you know the answer to this one? "What is the capital city of Portugal?"

82% knows the answer to this question: "When you see weather reports on TV, you'll notice lines drawn around those Hs and the Ls. Indicating areas of similar air pressure, what are those lines called? "

And do you know the answer to this one? "What natural disaster is caused by earthquakes but could also be caused by an asteroid?"

55% knows the answer to this question: "Which pair of animal species and type is correct? "

And do you know the answer to this one? "What is the name of the mountain on which four faces of presidents are carved?"

94% knows the answer to this question: "In 1989, authorities added 750 metric tonnes of lead weights around the north side of its base, to keep what city's Leaning Tower from collapsing? "

And do you know the answer to this one? "What was the purpose of the American Colonization Society, founded in 1816?"

77% knows the answer to this question: "In May 1973, the Mounted Police of which country celebrated their centenary? "

And do you know the answer to this one? "In 1961, the Beatles performed for the first time at the Cavern Club in which city?"

74% knows the answer to this question: "What specific type of person was Western Dance perfect for? "

And do you know the answer to this one? "What animal is a flat fish with no bones, only cartilage?"

68% knows the answer to this question: "Crest and Breaker are both terms that describe what? "

And do you know the answer to this one? "Which word can be defined as rapid transformation?"

37% knows the answer to this question: "What crustacean can attach to other animals or rocks? "

And do you know the answer to this one? "Whom did Camilla Shand meet for the first time on a wet afternoon in 1972 at a polo field on Windsor Great Park?"

48% knows the answer to this question: "What does ITTF, the governing body for all international table tennis associations, stand for? "

And do you know the answer to this one? "In 2014, Christine McVie rejoined what pop-rock band for the first time in 16 years?"

94% knows the answer to this question: "The Valley of the Kings and the Valley of the Queens stands on the west bank of what river? "

And do you know the answer to this one? "Indonesia, the largest archipelago in the world, holds which capital city?"

63% knows the answer to this question: "What is the position from which the viewer looks at an object or visual field? "

And do you know the answer to this one? "In what city can you visit the Basilica of Saint Peter?"

76% knows the answer to this question: "What birds not only have the best night vision, but also have feathers around their round faces that focus sound to provide them with near-supernatural directional hearing? "

And do you know the answer to this one? "What 1981 British film tells the fact-based story of two athletes in the 1924 Olympics?"