75% knows the answer to this question: "The Tiergarten boasts the world's largest zoo, as measured by number of animals resident. What zoo is this? "

And do you know the answer to this one? "The Knesset Building is built on a hill called Sheikh Badr, in what city, from which Arabs were forced to flee in 1948?"

70% knows the answer to this question: "British explorers called an extinct volcano Diamond Head because they thought the volcanic crystals were diamonds. And it looks down on what beach? "

And do you know the answer to this one? "Zhongdian County in what country's Yunan Province renamed itself Shangri-La County in 2002?"

74% knows the answer to this question: "The name of the Hindu Kush mountain range means "Hindu Killer." In what Muslim country do the mountains hate the Hindus? "

And do you know the answer to this one? "What people live in the western Pyrenees, in a region they call Euskal Herria, where they speak a language they call Euskara?"

76% knows the answer to this question: "The Swords of Qadisiyah, also called the Hands of Victory, are a pair of triumphal arches that consist of a pair of hands holding crossed swords. Where is it? "

And do you know the answer to this one? "What continent's southernmost tip isn't the Cape of Good Hope, but Cape Agulhas, which is about 160 kilometers east and 65 kilometer farther south?"

64% knows the answer to this question: "Poveglia has been a quarantine station and a mental hospital. No wonder they say the abandoned island is haunted. Where is it? "

And do you know the answer to this one? "When followed by "News," it's the name of a Virginia city that is home to Ella Fitzgerald and Allen Iverson. When followed by "Beach," it's the setting for "The O.C." and "Arrested Development." What is it?"

61% knows the answer to this question: "Ballistic pioneer Ernst Mach has a number named for him. What is it for? "

And do you know the answer to this one? "Which of these isn't a common name for Felis concolor, but is actually a variety of lynx?"

75% knows the answer to this question: "Known for its floating, raft-like nests, what is a grebe? "

And do you know the answer to this one? "What disaster, the strongest of its kind ever in the United States, befell New Madrid, Missouri, in 1811 and 1812, changing the course of the Mississippi?"

66% knows the answer to this question: "Locally considered the site of the Garden of Eden, Sharajat-al-Hayat is a 400-year-old mesquite tree in what country's desert? "

And do you know the answer to this one? "Brooklyn means "Broken Land" in what language?"

70% knows the answer to this question: "In 2014, 19-yr-old Jessica Smith revealed on her Facebook page that she had been the sun baby on what TV series? "

And do you know the answer to this one? "What "Peanuts" character is always dirty?"

61% knows the answer to this question: "Canids have 42 teeth. What are canids? "

And do you know the answer to this one? "Per the old cooking adage, how much liquid is "a pound the whole world 'round"?"

60% knows the answer to this question: "Builders of what Wonder of the World were paid a daily stipend of four loaves of bread and about eight pints (!) of beer? "

And do you know the answer to this one? "What is the largest of the Florida Keys?"

73% knows the answer to this question: "What two world capitals are just across the Rio de la Plata from one another? "

And do you know the answer to this one? "What river flows from the Mississippi along Kentucky's border with Illinois, Indiana and Ohio, before becoming the Ohio-West Virginia border into Pennsylvania?"