Article: Sunlight may be stored as gravitational potential energy after it strikes the Earth, as (for example) water evaporates from oceans and is deposited upon mountains (where, after being released at a hydroelectric dam, it can be used to drive turbines or generators to produce electricity). Sunlight also drives many weather phenomena, save those generated by volcanic events. An example of a solar-mediated weather event is a hurricane, which occurs when large unstable areas of warm ocean, heated over months, give up some of their thermal energy suddenly to power a few days of violent air movement.

Question: What occurs when large unstable areas of warm ocean, heated over months, give up some of their thermal energy suddenly to power a few days of violent air movement?
Ans: hurricane

Article: As the School grew, more students were allowed to attend provided that they paid their own fees and lived in the town, outside the College's original buildings. These students became known as Oppidans, from the Latin word oppidum, meaning town. The Houses developed over time as a means of providing residence for the Oppidans in a more congenial manner, and during the 18th and 19th centuries were mostly run by women known as "dames". They typically contain about fifty boys. Although classes are organised on a School basis, most boys spend a large proportion of their time in their House. Each House has a formal name, mainly used for post and people outside the Eton community. It is generally known by the boys by the initials or surname of the House Master, the teacher who lives in the house and manages the pupils in it.

Question: About how many students are in a typical Oppidan house?
Ans: fifty

Article: Similarly, movies and television often revert to standard, cliched snatches of classical music to convey refinement or opulence: some of the most-often heard pieces in this category include Bach's Cello Suite No. 1, Mozart's Eine kleine Nachtmusik, Vivaldi's Four Seasons, Mussorgsky's Night on Bald Mountain (as orchestrated by Rimsky-Korsakov), and Rossini's William Tell Overture.

Question: Who wrote Night on Bald Mountain?
Ans: Mussorgsky

Article: Fryderyk Chopin was born in Zelazowa Wola, 46 kilometres (29 miles) west of Warsaw, in what was then the Duchy of Warsaw, a Polish state established by Napoleon. The parish baptismal record gives his birthday as 22 February 1810, and cites his given names in the Latin form Fridericus Franciscus (in Polish, he was Fryderyk Franciszek). However, the composer and his family used the birthdate 1 March,[n 2] which is now generally accepted as the correct date.

Question: On what date was Frederic born on?
Ans:
22 February 1810