Problem: The Appalachian Mountains contain major deposits of anthracite coal as well as bituminous coal. In the folded mountains the coal is in metamorphosed form as anthracite, represented by the Coal Region of northeastern Pennsylvania. The bituminous coal fields of western Pennsylvania, western Maryland, southeastern Ohio, eastern Kentucky, southwestern Virginia, and West Virginia contain the sedimentary form of coal. The mountain top removal method of coal mining, in which entire mountain tops are removed, is currently threatening vast areas and ecosystems of the Appalachian Mountain region.
Which part of Ohio has the metamorphosed form of coal?
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Answer: unanswerable

Problem: The Royal School of Mines was established by Sir Henry de la Beche in 1851, developing from the Museum of Economic Geology, a collection of minerals, maps and mining equipment. He created a school which laid the foundations for the teaching of science in the country, and which has its legacy today at Imperial. Prince Albert was a patron and supporter of the later developments in science teaching, which led to the Royal College of Chemistry becoming part of the Royal School of Mines, to the creation of the Royal College of Science and eventually to these institutions becoming part of his plan for South Kensington being an educational region.
Who helped make the Royal School of Mines part of the Royal College of Chemistry?
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Answer: unanswerable

Problem: Following the discovery of a buffer overflow vulnerability in the Wii version of Twilight Princess, an exploit known as the "Twilight Hack" was developed, allowing the execution of custom code from a Secure Digital (SD) card on the console. A properly designed save file would cause the game to load unsigned code, which could include Executable and Linkable Format (ELF) programs and homebrew Wii applications. Versions 3.3 and 3.4 of the Wii Menu prevented copying exploited save files onto the console until circumvention methods were discovered, and version 4.0 of the Wii Menu patched the vulnerability.
What kind of error was found in Twilight Princess for Wii?
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Answer:
buffer overflow vulnerability