81% knows the answer to this question: "What are the names of the famous siblings in the Hardy Boys series? "

And do you know the answer to this one? "Which ancient city was buried under volcanic ash during the eruption of Mount Vesuvius in AD 79?"

60% knows the answer to this question: "I served as the 59th postwar Italian Prime Minister, who am I? "

And do you know the answer to this one? "A pentagram's four lower points represent air, fire, water, and which additional element?"

56% knows the answer to this question: "Which famous TV and movie star revealed in November 2015 that he is HIV-positive? "

And do you know the answer to this one? "What is the capital city of the African nation known as Mali?"

73% knows the answer to this question: "Which European nation got rid of its monarchy on June 1, 1973? "

And do you know the answer to this one? "What color is the male cardinal bird?"

79% knows the answer to this question: "Which bird is incapable of walking? "

And do you know the answer to this one? "How many animals are each Chinese year named after?"

57% knows the answer to this question: "Which dish is commonly served as a Thanksgiving side? "

And do you know the answer to this one? "In the movie The Santa Clause 3: The Escape Clause, who aims to take control of Christmas?"

62% knows the answer to this question: "Michael Jackson escorted this famous actress down the aisle. "

And do you know the answer to this one? "Finish the name of the well-known London attraction 'Madame ______'"

37% knows the answer to this question: "Which unit is commonly used to measure distance? "

And do you know the answer to this one? "Which astrological sign is famous for being dual-natured?"

93% knows the answer to this question: "What is the name of Dorothy's dog in the classic film The Wizard of Oz? "

And do you know the answer to this one? "According to myth, who was the queen of King Arthur?"

94% knows the answer to this question: "Which water brand is sourced near Lake Geneva? "

And do you know the answer to this one? "What numerical value represents the Roman numeral XC in Arabic numerals?"

70% knows the answer to this question: "What scale is used to measure the intensity of earthquakes? "

And do you know the answer to this one? "Louis Pasteur, a groundbreaking microbiologist, hailed from which country?"

80% knows the answer to this question: "Where can the White House be found? "

And do you know the answer to this one? "What defines a hologram?"