Problem: Database:

As computers grew in speed and capability, a number of general-purpose database systems emerged; by the mid-1960s a number of such systems had come into commercial use. Interest in a standard began to grow, and Charles Bachman, author of one such product, the Integrated Data Store (IDS), founded the "Database Task Group" within CODASYL, the group responsible for the creation and standardization of COBOL. In 1971 the Database Task Group delivered their standard, which generally became known as the "CODASYL approach", and soon a number of commercial products based on this approach entered the market.

What group discovered COBOL?
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A: Database Task Group

Problem: Jehovah%27s Witnesses:

Authors including William Whalen, Shawn Francis Peters and former Witnesses Barbara Grizzuti Harrison, Alan Rogerson and William Schnell have claimed the arrests and mob violence in the United States in the 1930s and 1940s were the consequence of what appeared to be a deliberate course of provocation of authorities and other religions by Jehovah's Witnesses. Whalen, Harrison and Schnell have suggested Rutherford invited and cultivated opposition for publicity purposes in a bid to attract dispossessed members of society, and to convince members that persecution from the outside world was evidence of the truth of their struggle to serve God. Watch Tower Society literature of the period directed that Witnesses should "never seek a controversy" nor resist arrest, but also advised members not to co-operate with police officers or courts that ordered them to stop preaching, and to prefer jail rather than pay fines.

Who were Jehovah's Witnesses accused of intentionally provoking in the 1930s and 1940s?
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A: authorities and other religions

Problem: Frederic Chopin:

From 1842 onwards, Chopin showed signs of serious illness. After a solo recital in Paris on 21 February 1842, he wrote to Grzymaa: "I have to lie in bed all day long, my mouth and tonsils are aching so much." He was forced by illness to decline a written invitation from Alkan to participate in a repeat performance of the Beethoven Seventh Symphony arrangement at Erard's on 1 March 1843. Late in 1844, Charles Halle visited Chopin and found him "hardly able to move, bent like a half-opened penknife and evidently in great pain", although his spirits returned when he started to play the piano for his visitor. Chopin's health continued to deteriorate, particularly from this time onwards. Modern research suggests that apart from any other illnesses, he may also have suffered from temporal lobe epilepsy.

What instrument did Chopin play for Charles Halle when the latter visited him?
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A: piano

Problem: Miami:

The city proper is home to less than one-thirteenth of the population of South Florida. Miami is the 42nd-most populous city in the United States. The Miami metropolitan area, which includes Miami-Dade, Broward and Palm Beach counties, had a combined population of more than 5.5 million people, ranked seventh largest in the United States, and is the largest metropolitan area in the Southeastern United States. As of 2008[update], the United Nations estimates that the Miami Urban Agglomeration is the 44th-largest in the world.

Where does Miami-Dade rank in population among metropolitan areas in the UN?
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A:
unanswerable