79% knows the answer to this question: "What nickname is associated with the U.S State of California? "

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

30% knows the answer to this question: "In which sport did Ben Hogan win the Masters competition in 1951? "

And do you know the answer to this one? "Add the letters IA to the name of this African country and you get the name of another African country. Which one?"

75% knows the answer to this question: "Vodka's name means "little water" in what language? "

And do you know the answer to this one? "What causes the blueness in blue vein cheese?"

78% knows the answer to this question: "Patron is a luxury brand of what Mexican booze, and is sold in hand-blown individually numbered bottles? "

And do you know the answer to this one? "What family of birds, known as Trochilidae, includes the only birds that can fly backwards?"

57% knows the answer to this question: "By what name is aerial combat often called? "

And do you know the answer to this one? "Rapid eye movement and slow wave are two deep phases of what activity?"

53% 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 German festival, known locally as Wiesn, begins with the mayor of Munich declaring "O'zapft is," meaning "The barrel has been tapped"?"

63% knows the answer to this question: "Which city is a key town for the Muslim, Jewish and Christian faiths? "

And do you know the answer to this one? "What nationality was Yoko Ono, who married John Lennon in 1969?"

80% knows the answer to this question: "Where was the hottest ever temperature in the US recorded in 2013? "

And do you know the answer to this one? "The book "The Time Machine" was written by whom?"

64% knows the answer to this question: "What does Steve McQueen ride at the end of 'The Great Escape'? "

And do you know the answer to this one? "Who had the hot song from the movie "The Graduate"?"

45% knows the answer to this question: "What is the capital city of the country Bosnia and Herzegovina? "

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

47% 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? "Which of these dangerous creatures is literally heartless?"

59% knows the answer to this question: "Key West is located in which US state? "

And do you know the answer to this one? "How many degrees is a complete circle?"