Problem: Korean War:

Although Kim's early successes had led him to predict that he would end the war by the end of August, Chinese leaders were more pessimistic. To counter a possible U.S. deployment, Zhou Enlai secured a Soviet commitment to have the Soviet Union support Chinese forces with air cover, and deployed 260,000 soldiers along the Korean border, under the command of Gao Gang. Zhou commanded Chai Chengwen to conduct a topographical survey of Korea, and directed Lei Yingfu, Zhou's military advisor in Korea, to analyze the military situation in Korea. Lei concluded that MacArthur would most likely attempt a landing at Incheon. After conferring with Mao that this would be MacArthur's most likely strategy, Zhou briefed Soviet and North Korean advisers of Lei's findings, and issued orders to Chinese army commanders deployed on the Korean border to prepare for American naval activity in the Korea Strait.

Who helped North Korea prepare for war by surveying the country?
---
A: Chai Chengwen

Problem: Several notable features have been removed in Windows 8, beginning with the traditional Start menu. Support for playing DVD-Video was removed from Windows Media Player due to the cost of licensing the necessary decoders (especially for devices which do not include optical disc drives at all) and the prevalence of online streaming services. For the same reasons, Windows Media Center is not included by default on Windows 8, but Windows Media Center and DVD playback support can be purchased in the "Pro Pack" (which upgrades the system to Windows 8 Pro) or "Media Center Pack" add-on for Windows 8 Pro. As with prior versions, third-party DVD player software can still be used to enable DVD playback.
Which main feature was removed in Windows 8?
---
Answer: the traditional Start menu

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
This liberalization, however, fostered nationalist movements and ethnic disputes within the Soviet Union. It also led indirectly to the revolutions of 1989, in which Soviet-imposed communist regimes of the Warsaw Pact were peacefully toppled (Romania excepted), which in turn increased pressure on Gorbachev to introduce greater democracy and autonomy for the Soviet Union's constituent republics. Under Gorbachev's leadership, the Communist Party of the Soviet Union in 1989 introduced limited competitive elections to a new central legislature, the Congress of People's Deputies (although the ban on other political parties was not lifted until 1990).
What was the name of the legislative body that was brought into existance in 1989?
A: Congress of People's Deputies

Context and question: By 1620, the fishermen of England's West Country controlled most of Newfoundland's east coast. In 1627, William Payne, called St. John's "the principal prime and chief lot in all the whole country". The population grew slowly in the 17th century and St. John's was the largest settlement in Newfoundland when English naval officers began to take censuses around 1675. The population would grow in the summers with the arrival of migratory fishermen. In 1680, fishing ships (mostly from South Devon) set up fishing rooms at St. John's, bringing hundreds of Irish men into the port to operate inshore fishing boats.
What caused the population to decrease in the summer?
Answer: unanswerable

Question: Imperial College London is a public research university located in London, United Kingdom. It was founded by Prince Albert who envisioned an area composed of the Natural History Museum, Science Museum, Victoria and Albert Museum, Royal Albert Hall and the Imperial Institute. The Imperial Institute was opened by his wife, Queen Victoria, who laid the first stone. In 1907, Imperial College London was formed by Royal Charter, and soon joined the University of London, with a focus on science and technology. The college has expanded its coursework to medicine through mergers with St Mary's Hospital. In 2004, Queen Elizabeth II opened the Imperial College Business School. Imperial became an independent university from the University of London during its one hundred year anniversary.
Is there an answer to this question: Who opened the Imperial Institute in 1907?

Answer: Queen Victoria

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Excavations in and near Agordat in central Eritrea yielded the remains of an ancient pre-Aksumite civilization known as the Gash Group. Ceramics were discovered that were related to those of the C-Group (Temehu) pastoral culture, which inhabited the Nile Valley between 25001500 BC. Some sources dating back to 3500 BC. Shards akin to those of the Kerma culture, another community that flourished in the Nile Valley around the same period, were also found at other local archaeological sites in the Barka valley belonging to the Gash Group. According to Peter Behrens (1981) and Marianne Bechaus-Gerst (2000), linguistic evidence indicates that the C-Group and Kerma peoples spoke Afroasiatic languages of the Berber and Cushitic branches, respectively.
Where did the Berber live in ancient times?
A:
unanswerable