32% knows the answer to this question: "Who did Barack Obama marry in 1992? "

And do you know the answer to this one? "Which of the following is a type of sweet onion?"

33% knows the answer to this question: "Which two nations signed the Intermediate-Range Nuclear Forces Treaty in 1987? "

And do you know the answer to this one? "It is said that Archimedes began to formulate his theories on hydrostatics when the tyrant of Syracuse Hiero II asked him if his crown was pure gold. What did Archimedes say when he realised how he could find out?"

68% knows the answer to this question: "The Amazon rainforest covers a large region in which of these countries? "

And do you know the answer to this one? "What was the head of state in Iran called before the revolution of 1979?"

88% knows the answer to this question: "The definition of "outside the body" best fits which medical term? "

And do you know the answer to this one? "Who sang the famous song ”Baby Love” (1964)?"

68% knows the answer to this question: "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? "

And do you know the answer to this one? "What Spanish-speaking nation got its name from its position on the Equator?"

72% knows the answer to this question: "What is the process of taking scrap materials and using them again called? "

And do you know the answer to this one? "What is a huge river of ice called?"

56% knows the answer to this question: "They are best known for inventing, building, and flying the world's first successful airplane. Who are they? "

And do you know the answer to this one? "Who invented the long-lasting, practical electric 'light bulb' and has been described as America's greatest inventor?"

59% knows the answer to this question: "French scientist Leopold Trouvelot brought what pest to Massachusetts, which got loose and started eating its way through New England's trees? "

And do you know the answer to this one? "The pericardium is a lining around which organ?"

30% knows the answer to this question: "What river is also called Old Man River and the Big Muddy? "

And do you know the answer to this one? "What is the traditional color to wear to a funeral in the United States?"

30% knows the answer to this question: "What kind of human cells did scientists successfully clone for the first time in 2013? "

And do you know the answer to this one? "At a 1998 conference, what single currency did 12 European nations agree to adopt?"

82% knows the answer to this question: "The four-leaf clover, which symbolizes good luck, is what color? "

And do you know the answer to this one? "Which word is spelled wrong?"

48% knows the answer to this question: "Which is an old school arcade style casual game you chop wood and avoid the branches? "

And do you know the answer to this one? "Breathing through a tube that touches the surface while swimming is known as what?"