33% knows the answer to this question: "What is the term given to the central and highest stone in an arch? "

And do you know the answer to this one? "What is the term given for something drawn by hand, without the use of any mechanical device?"

30% knows the answer to this question: "What colour are most taxicabs in London? "

And do you know the answer to this one? "When is a plane most likely to go through a wind tunnel?"

90% knows the answer to this question: "In 1810, this city passed Philadelphia to become the largest in the US. In 1830, it passed Mexico City to become the largest in the Western Hemisphere. And from 1930 until the 1980s, it was the largest in the world. What city is this? "

And do you know the answer to this one? "Kaunas is in which country?"

88% knows the answer to this question: "The Manx cat is irregular because it has what? "

And do you know the answer to this one? "Andy Warhol made an eight hour movie that featured a man doing what?"

44% knows the answer to this question: "Many DJs played a remix of what Celine Dion song, which included dialog from Titanic? "

And do you know the answer to this one? "Ian Botham represented England in which sport?"

80% knows the answer to this question: "In which of these countries might you see kangaroos in the wild? "

And do you know the answer to this one? "Florence is a major city in which country?"

58% knows the answer to this question: "The "Mona Lisa" is a painting of what? "

And do you know the answer to this one? "The Great Wall is a famous tourist destination in which country?"

65% knows the answer to this question: "In what U.S. is the island of Manhattan located? "

And do you know the answer to this one? "From which app do you purchase music?"

55% knows the answer to this question: "Which chemical helps keep a pool free of bacteria? "

And do you know the answer to this one? "The Rocky Mountains are in which country?"

52% knows the answer to this question: "What word completes the line "Twinkle, twinkle, little"? "

And do you know the answer to this one? "What animal, known for its putative ability to never forget, forms herds called memories?"

46% knows the answer to this question: "What makes up a glacier? "

And do you know the answer to this one? "What do you traditionally stick out if you are attempting to hitch a lift?"

93% knows the answer to this question: "What is the name of the highest mountain in Africa? "

And do you know the answer to this one? "Where in the world can you find the Trump Building, at 927 feet tall?"