66% knows the answer to this question: "In 1918, which killed at least 50 million people around the world? "

And do you know the answer to this one? "What natural disaster is caused by earthquakes but could also be caused by an asteroid?"

86% knows the answer to this question: "The city of Osaka is located in which country? "

And do you know the answer to this one? "What is a historically important international trade route between China and the Mediterranean?"

55% knows the answer to this question: "What is the name of the protein found in wheat flour? "

And do you know the answer to this one? "Popular lore notwithstanding, what breed of rescue dog never actually carried casks of brandy from its collar?"

47% knows the answer to this question: "What animal eats hundreds of pounds of fish and marine mammals every day? "

And do you know the answer to this one? "The 1950s actress Sophia Loren was from which country?"

32% knows the answer to this question: "What is the name of the company that gave us the Kindle? "

And do you know the answer to this one? "What was the name of the sad donkey in "Winnie the Pooh"?"

31% knows the answer to this question: "What else do you need to make your own toy guitar besides a ruler and rubber bands? "

And do you know the answer to this one? "Which bone in the body shows the main difference between men and women?"

36% knows the answer to this question: "In what year did World War II begin? "

And do you know the answer to this one? "El gato Siames is what kind of family pet?"

49% knows the answer to this question: "If you cannot stand the heat, get out of the ... "

And do you know the answer to this one? "What is the missing word: Do not look a gift horse in the ...."

90% knows the answer to this question: "The acronym for the disease SARS stands for Severe Acute _______ Syndrome? "

And do you know the answer to this one? "Abe leaves home at 8.12, walks 15 minutes to the gym and does a 30 minute class. When does he finish?"

83% knows the answer to this question: "According to Black Panther Eldridge Cleaver, "you're either part of the solution or" ... what? "

And do you know the answer to this one? "What do the Beatles offer to buy their girl in two #1 hits, Can't Buy Me Love and I Feel Fine, both from 1964?"

77% knows the answer to this question: "Who first vulcanized rubber? "

And do you know the answer to this one? "Blowfly offspring can be used to tell how long a body has been dead and to eat dead flesh in living patients. What offspring is this?"

81% knows the answer to this question: "Which is the largest muscle in an adult human? "

And do you know the answer to this one? "What animal spreads Zika virus?"