59% knows the answer to this question: "In what country did okonomiyaki originate? "

And do you know the answer to this one? "What element does hydrogen combine with to make the compound water?"

42% knows the answer to this question: "Which of these is South Africa particularly famous for being a source of? "

And do you know the answer to this one? "In which city is the Parthenon located?"

68% knows the answer to this question: "What nickname is given to the Santa Clara valley in California? "

And do you know the answer to this one? "You know about smog, but what state has vog, or volcanic smog?"

53% knows the answer to this question: "According to the Andrews Sisters, where shouldn't you sit "with anyone else but me"? "

And do you know the answer to this one? "Which single of The Bangles features hieroglyphics on the cover?"

65% knows the answer to this question: "What soft drink giant opened a bottling factory in Afghanistan in 2006? "

And do you know the answer to this one? "Home to Patong Beach, Phuket is an island province and tourist destination in what country?"

36% knows the answer to this question: "Which Stewart had a 1993 hit with 'Have I Told You Lately'? "

And do you know the answer to this one? "The Cape Colony's chief gemologist said that Schalk van Niekerk's diamond was just a pebble. Where was he?"

42% knows the answer to this question: "Clementines are named for the French monk, Pere Clement Rodier, who apparently created them as a hybrid the Mandarin and Seville varieties. Of what? "

And do you know the answer to this one? "In what song does Dolly Parton sing: "What a way to make a livin' - Barely gettin' by - Its all takin' - And no givin"?"

38% knows the answer to this question: "Black Monday, October 20, 1987, was the date of what type of catastrophic crash? "

And do you know the answer to this one? "Which 1960's Black militant was an outspoken leader of the Nation of Islam?"

49% knows the answer to this question: "What was the heavily guarded border called that separated Eastern and Western Europe after WWII? "

And do you know the answer to this one? "Who was the US president between 1977 and 1981?"

95% knows the answer to this question: "In 2012, many people were stranded by floods in New South Wales and Queensland in what country? "

And do you know the answer to this one? "Israel launched Operation Protective Edge in which area in 2014?"

84% knows the answer to this question: "As you might guess from the title, where is the Jean Renoir romance Partie de Campagne set? "

And do you know the answer to this one? "Which group took 'House of the Rising Son' to the top of the charts in the '60s?"

70% knows the answer to this question: "What were the games that were held in Greece to honor the god Zeus called? "

And do you know the answer to this one? "Who became the leader of North Korea after his father died on 17 December 2011?"