38% knows the answer to this question: "Known for its red-light district and cannabis-selling cafes, what city's appropriate symbol is three crosses, or "xxx"? "

And do you know the answer to this one? "What is 0.88 as a percentage from 1?"

50% knows the answer to this question: "What was the nickname given to World War I ace pilot Manfred Von Richtofen? "

And do you know the answer to this one? "Brother Spud and Sister Yam were part of which toy brand?"

58% knows the answer to this question: "What are the Benelux countries? "

And do you know the answer to this one? "Which two famous rivers flow through Iraq?"

66% knows the answer to this question: "What 2013 film is about turkeys trying to survive Thanksgiving? "

And do you know the answer to this one? "What is the first name of boxing's Dempsey?"

66% knows the answer to this question: "In the 2007 film "Pirates of the Caribbean: At World's End", where is Jack rescued from? "

And do you know the answer to this one? "The Blair ... Project"

60% knows the answer to this question: "Which teenager had a massive hit in the '80s with 'I Think We're Alone Now'? "

And do you know the answer to this one? "Justin Bieber was born in which country?"

57% knows the answer to this question: "What animal builds canals and multi-chambered homes called lodges, using wood that they gnaw so it doesn't crush them? "

And do you know the answer to this one? "You can find the Wailing Wall at which location?"

49% knows the answer to this question: "Who became the supreme leader of North Korea on December 28, 2011? "

And do you know the answer to this one? "You can make a salad from this lawn weed's greens and wash it down with a wine made from its yellow flowers. What?"

59% knows the answer to this question: "Pardon me, boy, but what famous train left Pennsylvania Station from Track 29, at 'bout a quarter to four? "

And do you know the answer to this one? "Which day was a hit for the Mamas and Papas?"

58% knows the answer to this question: "John Lennon married an artist from which country in the late 1960s? "

And do you know the answer to this one? "Who did Vladimir Lenin lead in the Russian Revolution?"

67% knows the answer to this question: "Who sang the famous song "Give Peace a Chance" (1969)? "

And do you know the answer to this one? "Who sang the famous song "Wouldn't It Be Nice" (1966)"

32% knows the answer to this question: "In which modern day country was the Inca civilization formed? "

And do you know the answer to this one? "Which of the following wars happened first?"