68% knows the answer to this question: "Descended from a wealthy aristocratic family, the young Plato joined the group of disciples of a famous philosopher who influenced him profoundly. Who was his teacher? "

And do you know the answer to this one? "In 1924, what was then Petrograd was renamed Leningrad. What is that city called today?"

36% knows the answer to this question: "Who is considered the father of medicine who is credited with an oath that is still pronounced by young physicians that establishes the fundamental principles of the discipline? "

And do you know the answer to this one? "Who was Vladimir Lenin?"

32% knows the answer to this question: "What was the occupation of Leonardo da Vinci? "

And do you know the answer to this one? "Dwight D. Eisenhower belonged to which political party?"

85% knows the answer to this question: "Who directed 'The Birds'? "

And do you know the answer to this one? "Who was William Shakespeare?"

59% knows the answer to this question: "What Scottish creature was first spotted in 1933? "

And do you know the answer to this one? "Which region of the world is where Judaism, Christianity, and Islam originated?"

30% knows the answer to this question: "Who did the IRA fight a guerrilla war of independence against between 1919 and 1921? "

And do you know the answer to this one? "Which artist is generally considered to be the father of contemporary country music?"

65% knows the answer to this question: "In 2005, Prince Charles married to? "

And do you know the answer to this one? "Who was the Emperor of Japan during WW2?"

69% knows the answer to this question: "Who apparently wore eyepatches so that they could move quickly below and above decks without waiting for both eyes to adjust to different lighting? "

And do you know the answer to this one? "What was the first name of Italian dictator Mussolini?"

63% knows the answer to this question: "What was the name of the American inventor who is regarded as the inventor of the light bulb, alongside Sir Joseph Swan? "

And do you know the answer to this one? "After the architects messed up the first pyramid, Snefru ordered them to make a second one. Where?"

77% knows the answer to this question: "What Cold War landmark was dismantled on November 11, 1989? "

And do you know the answer to this one? "During which War was 'The Siege of Charleston' fought in the 1770-1780s?"

56% knows the answer to this question: "In 1770, what 14-yr-old married the future Louis XVI in the Palace of Versailles? "

And do you know the answer to this one? "Akihito became Emperor of which country in 1989?"

89% knows the answer to this question: "What sporting event was invented by the Ancient Greeks? "

And do you know the answer to this one? "Fletcher Christian led a mutiny on which ship in 1789?"