The problem: Answer a question about this article:
The CIPA DC-004 standard requires that Japanese manufacturers of digital still cameras use either the REI or SOS techniques, and DC-008 updates the Exif specification to differentiate between these values. Consequently, the three EI techniques carried over from ISO 12232:1998 are not widely used in recent camera models (approximately 2007 and later). As those earlier techniques did not allow for measurement from images produced with lossy compression, they cannot be used at all on cameras that produce images only in JPEG format.
Which methods are required by CIPA DC-004?
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The answer: REI or SOS techniques


The problem: Answer a question about this article:
Sometimes passenger elevators are used as a city transport along with funiculars. For example, there is a 3-station underground public elevator in Yalta, Ukraine, which takes passengers from the top of a hill above the Black Sea on which hotels are perched, to a tunnel located on the beach below. At Casco Viejo station in the Bilbao Metro, the elevator that provides access to the station from a hilltop neighborhood doubles as city transportation: the station's ticket barriers are set up in such a way that passengers can pay to reach the elevator from the entrance in the lower city, or vice versa. See also the Elevators for urban transport section.
Passenger elevators, used in city transport share similarities to what other ascending and descending vehicles counterbalancing each other?    
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The answer: funiculars


The problem: Answer a question about this article:
Gaddafi remained a controversial and divisive figure on the world stage throughout his life and after death. Supporters praised Gaddafi's administration for the creation of an almost classless society through domestic reform. They stress the regime's achievements in combating homelessness and ensuring access to food and safe drinking water. Highlighting that under Gaddafi, all Libyans enjoyed free education to a university level, they point to the dramatic rise in literacy rates after the 1969 revolution. Supporters have also applauded achievements in medical care, praising the universal free healthcare provided under the Gaddafist administration, with diseases like cholera and typhoid being contained and life expectancy raised. Biographers Blundy and Lycett believed that under the first decade of Gaddafi's leadership, life for most Libyans "undoubtedly changed for the better" as material conditions and wealth drastically improved, while Libyan studies specialist Lillian Craig Harris remarked that in the early years of his administration, Libya's "national wealth and international influence soared, and its national standard of living has risen dramatically." Such high standards declined during the 1980s, as a result of economic stagnation. Gaddafi claimed that his Jamahiriya was a "concrete utopia", and that he had been appointed by "popular assent", with some Islamic supporters believing that he exhibited barakah. His opposition to Western governments earned him the respect of many in the Euro-American far right.
What is the occupation of Lillian Craig Harris?
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The answer: Libyan studies specialist


The problem: Answer a question about this article:
The term "classical music" did not appear until the early 19th century, in an attempt to distinctly canonize the period from Johann Sebastian Bach to Beethoven as a golden age. The earliest reference to "classical music" recorded by the Oxford English Dictionary is from about 1836.
What year was the earliest reference to classical music?
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The answer:
1836