35% knows the answer to this question: "During which civil war did the 'Battle of Pleasant Hill' take place? "

And do you know the answer to this one? "In 1899, what country's kaiser planned an invasion of the US that involved amphibious assaults on Boston by way of Cape Cod, and New York City by way of Sandy Hook?"

37% knows the answer to this question: "Diego Rivera graduated from painting on large canvases to painting what? "

And do you know the answer to this one? "What singer might have co-starred in True Grit, had Colonel Tom Parker not insisted he get top billing over John Wayne?"

69% knows the answer to this question: "During which dynasty was Beijing's Forbidden City -- and a lot of great vases -- built? "

And do you know the answer to this one? "What are soldiers who fight on horseback?"

57% knows the answer to this question: "'Othello' was a play written by which historical figure? "

And do you know the answer to this one? "As Turks nibbled at his lands, the Byzantine Emperor asked the pope for help, which ended up being what series of medieval wars in the Middle East?"

64% 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? "A ripe watermelon has a rind that is what color?"

45% knows the answer to this question: "Which of the following Presidents' First Lady was named Betty? "

And do you know the answer to this one? "The endangered "lesser one-horned" variety of what ungulate is also known as the Javan species?"

83% knows the answer to this question: "In 2014, Peter Cosgrove became the new Governor-General of which Commonwealth nation? "

And do you know the answer to this one? "The Dalai Lama is a Buddhist leader in what country?"

77% knows the answer to this question: "Who warbled alongside crooner Julio Iglesias, dedicating the tune "To All the Girls I've Loved Before"? "

And do you know the answer to this one? "Its name may come from "Land of Kali," or maybe from the Bengali for "flat area." What city is this?"

59% knows the answer to this question: "Who was tried for the murder of Nicole Brown and Ronald Goldman in 1994? "

And do you know the answer to this one? "What are the only bear species to be considered marine mammals?"

78% knows the answer to this question: "Who sang the famous song "Teach Your Children" (1970) "

And do you know the answer to this one? "Who sang the famous song "Cold As Ice" (1977)"

35% knows the answer to this question: "Named by John Fremont for Istanbul's Golden Horn, the Golden Gate connects what bay to the Pacific Ocean? "

And do you know the answer to this one? "Which historical figure is Santa Claus based on?"

42% knows the answer to this question: "The U.S. uses tons of what to melt roadway ice? "

And do you know the answer to this one? "What type of animal is a guppy?"