74% knows the answer to this question: "Johann Strauss the Younger to the contrary, what "beautiful blue" river is actually mostly a yucky brown, thanks to all the pollution? "

And do you know the answer to this one? "Walk, trot, canter and rack are all types of what?"

91% knows the answer to this question: "Which island off the coast of Africa is home to 6,000 flowering plants, half the world's chameleon varieties and most of its surviving lemurs? "

And do you know the answer to this one? "What is the capital city of Spain?"

86% knows the answer to this question: "In what year was there a major Wall Street crash? "

And do you know the answer to this one? "What nickname for New York City used to refer to something highly desired by gamblers?"

50% knows the answer to this question: "Which band earned a Best Rock Album Grammy nomination for 2013's "Mechanical Bull"? "

And do you know the answer to this one? "Which former member of Oasis released the album "Chasing Yesterday" in 2015?"

45% knows the answer to this question: "What puzzle was invented by Erno Rubik in 1974? "

And do you know the answer to this one? "In the 1920, Vienna physician Manfred Sakel treated drug addiction by deliberating inducing comas through overdoses of what diabetes-treating drug?"

39% knows the answer to this question: "Named for the Latin word for "flute," where would you find your tibia? "

And do you know the answer to this one? "Sonoma County Airport uses as its logo a cartoon dog in flying ace gear. And the airport itself is named for what local cartoonist?"

57% knows the answer to this question: "Cocker, Cavalier King Charles and Russian are types of which dog? "

And do you know the answer to this one? "In June 2015, Dylann Roof killed 9 people at Emanuel A.M.E. church in which South Carolina city?"

45% knows the answer to this question: "In 1650, two years after the Thirty Years War had wiped out the male population, what German city allowed men to have two wives? "

And do you know the answer to this one? "Oceanus Hopkins was born sometime in 1620 between September 6 and November 9. Aboard what ship?"

64% knows the answer to this question: "What musical, a Vietnam-era updating of Madame Butterfly, was famous for a scene in which a helicopter lands on stage? "

And do you know the answer to this one? "What is the process by which wine is exposed to air to "relax" the drink?"

52% knows the answer to this question: "What is 10% of 1,000? "

And do you know the answer to this one? "If you divide 37 by 6 and the result is 6 with 1 left, what's the "1" called? "

39% knows the answer to this question: "In which city is La Guardia airport? "

And do you know the answer to this one? "Famous MLB field Dodger Stadium is in which city?"

33% knows the answer to this question: "Lithography, invented in 1798, is a method of doing what? "

And do you know the answer to this one? "The Sugar and Molasses Act of 1733 was designed to keep the Americans from drinking the French version of what drink, which was also widely available from England's own Caribbean possessions?"