Problem: Literature:

Philosophy has become an increasingly academic discipline. More of its practitioners lament this situation than occurs with the sciences; nonetheless most new philosophical work appears in academic journals. Major philosophers through history—Plato, Aristotle, Socrates, Augustine, Descartes, Kierkegaard, Nietzsche—have become as canonical as any writers. Some recent philosophy works are argued to merit the title "literature", but much of it does not, and some areas, such as logic, have become extremely technical to a degree similar to that of mathematics.

Who are some of the most important philosophers in history?
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A: Plato, Aristotle, Socrates, Augustine, Descartes, Kierkegaard, Nietzsche


Problem: New York City:

Several prominent American literary figures lived in New York during the 1830s and 1840s, including William Cullen Bryant, Washington Irving, Herman Melville, Rufus Wilmot Griswold, John Keese, Nathaniel Parker Willis, and Edgar Allan Poe. Public-minded members of the contemporaneous business elite lobbied for the establishment of Central Park, which in 1857 became the first landscaped park in an American city.

Central park, in 1857, became the first park in America to become what?
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A: first landscaped


Problem: Light-emitting diode:

A P-N junction can convert absorbed light energy into a proportional electric current. The same process is reversed here (i.e. the P-N junction emits light when electrical energy is applied to it). This phenomenon is generally called electroluminescence, which can be defined as the emission of light from a semi-conductor under the influence of an electric field. The charge carriers recombine in a forward-biased P-N junction as the electrons cross from the N-region and recombine with the holes existing in the P-region. Free electrons are in the conduction band of energy levels, while holes are in the valence energy band. Thus the energy level of the holes will be lesser than the energy levels of the electrons. Some portion of the energy must be dissipated in order to recombine the electrons and the holes. This energy is emitted in the form of heat and light.

 Where are the free electrons located in the production of non-electroluminescence?
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A: unanswerable


Problem: New Haven, Connecticut:

New Haven is the birthplace of former president George W. Bush, who was born when his father, former president George H. W. Bush, was living in New Haven while a student at Yale. In addition to being the site of the college educations of both Presidents Bush, as Yale students, New Haven was also the temporary home of former presidents William Howard Taft, Gerald Ford, and Bill Clinton, as well as Secretary of State John Kerry. President Clinton met his wife, former U.S. Secretary of State Hillary Rodham Clinton, while the two were students at Yale Law School. Former vice presidents John C. Calhoun and Dick Cheney also studied in New Haven (although the latter did not graduate from Yale). Before the 2008 election, the last time there was not a person with ties to New Haven and Yale on either major party's ticket was 1968. James Hillhouse, a New Haven native, served as President pro tempore of the United States Senate in 1801.

What former U.S. president was born in New Haven?
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A:
George W. Bush