Problem: Himachal Pradesh:

Railway Himachal is famous for its narrow gauge tracks railways, one is UNESCO World Heritage Kalka-Shimla Railway and another one is PathankotJogindernagar. Total length of these two tracks is 259 kilometres (161 mi). Kalka-Shimla Railway track passes through many tunnels, while PathankotJogindernagar gently meanders through a maze of hills and valleys. It also has standard gauge railway track which connect Amb (Una district) to Delhi. A survey is being conducted to extend this railway line to Kangra (via Nadaun). Other proposed railways in the state are Baddi-Bilaspur, Dharamsala-Palampur and Bilaspur-Manali-Leh.

What is Railway Himachal famous for?
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A: its narrow gauge tracks railways

Problem: Thuringia became a landgraviate in 1130 AD. After the extinction of the reigning Ludowingian line of counts and landgraves in 1247 and the War of the Thuringian Succession (12471264), the western half became independent under the name of "Hesse", never to become a part of Thuringia again. Most of the remaining Thuringia came under the rule of the Wettin dynasty of the nearby Margraviate of Meissen, the nucleus of the later Electorate and Kingdom of Saxony. With the division of the house of Wettin in 1485, Thuringia went to the senior Ernestine branch of the family, which subsequently subdivided the area into a number of smaller states, according to the Saxon tradition of dividing inheritance amongst male heirs. These were the "Saxon duchies", consisting, among others, of the states of Saxe-Weimar, Saxe-Eisenach, Saxe-Jena, Saxe-Meiningen, Saxe-Altenburg, Saxe-Coburg, and Saxe-Gotha; Thuringia became merely a geographical concept.
Who did the Saxon Duchies consist of?
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Answer: the states of Saxe-Weimar, Saxe-Eisenach, Saxe-Jena, Saxe-Meiningen, Saxe-Altenburg, Saxe-Coburg, and Saxe-Gotha

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In an influential 1988 paper, Timothy Rowe defined Mammalia phylogenetically as the crown group mammals, the clade consisting of the most recent common ancestor of living monotremes (echidnas and platypuses) and therian mammals (marsupials and placentals) and all descendants of that ancestor. Since this ancestor lived in the Jurassic period, Rowe's definition excludes all animals from the earlier Triassic, despite the fact that Triassic fossils in the Haramiyida have been referred to the Mammalia since the mid-19th century.
Which group do marsupials and placentals belong to?
A: therian mammals

Context and question: Since the 1979 Revolution, to overcome foreign embargoes, Iran has developed its own military industry, produced its own tanks, armored personnel carriers, guided missiles, submarines, military vessels, guided missile destroyer, radar systems, helicopters and fighter planes. In recent years, official announcements have highlighted the development of weapons such as the Hoot, Kowsar, Zelzal, Fateh-110, Shahab-3 and Sejjil missiles, and a variety of unmanned aerial vehicles (UAVs). The Fajr-3 (MIRV) is currently Iran's most advanced ballistic missile, it is a liquid fuel missile with an undisclosed range which was developed and produced domestically.
Why did Iran have to build its own military hardware, vehicles, and weapons after the 1979 Revolution?
Answer: foreign embargoes

Question: National Basketball Association teams play eight preseason games per year. Today, NBA teams almost always play each other in the preseason, but mainly at neutral sites within their market areas in order to allow those who can't usually make a trip to a home team's arena during the regular season to see a game close to home; for instance the Minnesota Timberwolves will play games in arenas in North Dakota and South Dakota, while the Phoenix Suns schedule one exhibition game outdoors at Indian Wells Tennis Garden in Indian Wells, California yearly, the only such instance an NBA game takes place in an outdoor venue.
Is there an answer to this question: Who almost always plays each other in the postseason?

Answer: unanswerable

QUES: Northwestern is privately owned and is governed by an appointed Board of Trustees. The board, composed of 70 members and as of 2011[update] chaired by William A. Osborn '69, delegates its power to an elected president to serve as the chief executive officer of the university. Northwestern has had sixteen presidents in its history (excluding interim presidents), the current president, Morton O. Schapiro, an economist, having succeeded Henry Bienen whose 14-year tenure ended on August 31, 2009. The president has a staff of vice presidents, directors, and other assistants for administrative, financial, faculty, and student matters. Daniel I. Linzer, provost since September 2007, serves under the president as the chief academic officer of the university to whom the deans of every academic school, leaders of cross-disciplinary units, and chairs of the standing faculty committee report.

How many members are on Northwestern's Board of Trustees?
What is the answer?
ANS:
70