38% knows the answer to this question: "The Friedrichshafen G.III plane was used predominately by which country in World War I? "

And do you know the answer to this one? "Who led the slave revolt that ended in 71 BC?"

93% knows the answer to this question: "Which former First Lady died in 1994, 31 years after her husband was assassinated? "

And do you know the answer to this one? "Which nation established dominion over South Africa in 1902?"

41% knows the answer to this question: "In which city was John F. Kennedy assassinated? "

And do you know the answer to this one? "What British politician and leader died April 8, 2013?"

37% knows the answer to this question: "In which country might you expect to see women wearing saris? "

And do you know the answer to this one? "Which wall was the physical manifestation of Europe's 'Iron Curtain'?"

44% knows the answer to this question: "Which number is odd? "

And do you know the answer to this one? "What is the expected time an organism will live called?"

90% knows the answer to this question: "What is the unit of weight by which a gemstone is measured? "

And do you know the answer to this one? "Who ya gonna call? A lawyer! What movie was sued by the Caspar the Friendly Ghost people and got theme-song writer Ray Parker Jr sued by Huey Lewis and the News?"

86% knows the answer to this question: "Yellowstone Lake is in which national park? "

And do you know the answer to this one? "Sixteen Adipose are in a basket. If one gets out and two more gets in, how many are in the basket now?"

36% knows the answer to this question: "In what country was the famous artist Leonardo da Vinci born? "

And do you know the answer to this one? "Einstein's E=mc2 equation is known as the theory of what?"

39% knows the answer to this question: "Which major river flows north through Africa and empties in the Mediterranean Sea? "

And do you know the answer to this one? "Islamabad is the capital of which "P"?"

34% knows the answer to this question: "What puzzle won "Toy of the Year" in 1980? "

And do you know the answer to this one? "What did the "Farmer in the Dell" take?"

51% knows the answer to this question: "Anne Boleyn and Catherine Howard were both wives of what king? "

And do you know the answer to this one? "Which species can be described as a water bird?"

77% knows the answer to this question: "What mountain, which stands at 3,776 meters, is the highest point in Japan? "

And do you know the answer to this one? "Which media personality, the daughter of Whitney Houston and Bobby Brown, passed away in July 2015?"