Problem: Crimean War:

During this period, the Russian Black Sea Fleet was operating against Ottoman coastal traffic between Constantinople (currently named Istanbul) and the Caucasus ports, while the Ottoman fleet sought to protect this supply line. The clash came on 30 November 1853 when a Russian fleet attacked an Ottoman force in the harbour at Sinop, and destroyed it at the Battle of Sinop. The battle outraged opinion in UK, which called for war. There was little additional naval action until March 1854 when on the declaration of war the British frigate Furious was fired on outside Odessa harbour. In response an Anglo-French fleet bombarded the port, causing much damage to the town. To show support for Turkey after the battle of Sinop, on the 22th of December 1853, the Anglo-French squadron entered the Black Sea and the steamship HMS Retribution approached the Port of Sevastopol, the commander of which received an ultimatum not to allow any ships in the Black Sea.

What was the name of the ship that was attacked outside of the Odessa harbor?
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A: Furious


Problem: Unicode defines two mapping methods: the Unicode Transformation Format (UTF) encodings, and the Universal Coded Character Set (UCS) encodings. An encoding maps (possibly a subset of) the range of Unicode code points to sequences of values in some fixed-size range, termed code values. The numbers in the names of the encodings indicate the number of bits per code value (for UTF encodings) or the number of bytes per code value (for UCS encodings). UTF-8 and UTF-16 are probably the most commonly used encodings. UCS-2 is an obsolete subset of UTF-16; UCS-4 and UTF-32 are functionally equivalent.
What is functionally equivalent to USC-2?
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Answer: unanswerable


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Active solar techniques use photovoltaics, concentrated solar power, solar thermal collectors, pumps, and fans to convert sunlight into useful outputs. Passive solar techniques include selecting materials with favorable thermal properties, designing spaces that naturally circulate air, and referencing the position of a building to the Sun. Active solar technologies increase the supply of energy and are considered supply side technologies, while passive solar technologies reduce the need for alternate resources and are generally considered demand side technologies.
Are supply side solar technologies generally active or passive?
A: Active


Context and question: During the administration of U.S. President Martin Van Buren, nearly 17,000 Cherokees—along with approximately 2,000 black slaves owned by Cherokees—were uprooted from their homes between 1838 and 1839 and were forced by the U.S. military to march from "emigration depots" in Eastern Tennessee (such as Fort Cass) toward the more distant Indian Territory west of Arkansas. During this relocation an estimated 4,000 Cherokees died along the way west. In the Cherokee language, the event is called Nunna daul Isunyi—"the Trail Where We Cried." The Cherokees were not the only American Indians forced to emigrate as a result of the Indian removal efforts of the United States, and so the phrase "Trail of Tears" is sometimes used to refer to similar events endured by other American Indian peoples, especially among the "Five Civilized Tribes". The phrase originated as a description of the earlier emigration of the Choctaw nation.
Which Native American nation's emigration was first associated with the term "Trail of Tears?"
Answer: Choctaw


Question: Despite wide use by politicians, judges and academics, the rule of law has been described as "an exceedingly elusive notion". Among modern legal theorists, one finds that at least two principal conceptions of the rule of law can be identified: a formalist or "thin" definition, and a substantive or "thick" definition; one occasionally encounters a third "functional" conception. Formalist definitions of the rule of law do not make a judgment about the "justness" of law itself, but define specific procedural attributes that a legal framework must have in order to be in compliance with the rule of law. Substantive conceptions of the rule of law go beyond this and include certain substantive rights that are said to be based on, or derived from, the rule of law.
Is there an answer to this question: What is the third and lesser referred to approach on defining the rule of law?

Answer: functional


Question: Although dance-oriented, electronic pop and ballad-oriented rock dominated the 1980s, soft rock songs still enjoyed a mild success thanks to artists like Sheena Easton, Amy Grant, Lionel Richie, Christopher Cross, Dan Hill, Leo Sayer, Billy Ocean, Julio Iglesias, Bertie Higgins and Tommy Page. No song spent more than six weeks at #1 on this chart during the 1980s, with nine songs accomplishing that feat. Two of these were by Lionel Richie, "You Are" in 1983 and "Hello" in 1984, which also reached #1 on the Hot 100.
Is there an answer to this question: What was the longest that a song spent at #1 on the adult contemporary charts in the 1980s?

Answer:
six weeks