Problem: Antarctica:

Aristotle wrote in his book Meteorology about an Antarctic region in c. 350 B.C. Marinus of Tyre reportedly used the name in his unpreserved world map from the 2nd century A.D. The Roman authors Hyginus and Apuleius (12 centuries A.D.) used for the South Pole the romanized Greek name polus antarcticus, from which derived the Old French pole antartike (modern pole antarctique) attested in 1270, and from there the Middle English pol antartik in a 1391 technical treatise by Geoffrey Chaucer (modern Antarctic Pole).

Who wrote about an Antarctic region in the third century B.C?
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A: unanswerable

Problem: Tennessee:

The highest point in the state is Clingmans Dome at 6,643 feet (2,025 m). Clingmans Dome, which lies on Tennessee's eastern border, is the highest point on the Appalachian Trail, and is the third highest peak in the United States east of the Mississippi River. The state line between Tennessee and North Carolina crosses the summit. The state's lowest point is the Mississippi River at the Mississippi state line (the lowest point in Memphis, nearby, is at 195 ft (59 m)). The geographical center of the state is located in Murfreesboro.

What mountain in Tennessee is the Appalachian Trail's highest point?
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A: Clingmans Dome

Problem: War on Terror:

The first ground attack came at the Battle of Umm Qasr on 21 March 2003 when a combined force of British, American and Polish forces seized control of the port city of Umm Qasr. Baghdad, Iraq's capital city, fell to American forces in April 2003 and Saddam Hussein's government quickly dissolved. On 1 May 2003, Bush announced that major combat operations in Iraq had ended. However, an insurgency arose against the U.S.-led coalition and the newly developing Iraqi military and post-Saddam government. The insurgency, which included al-Qaeda affiliated groups, led to far more coalition casualties than the invasion. Other elements of the insurgency were led by fugitive members of President Hussein's Ba'ath regime, which included Iraqi nationalists and pan-Arabists. Many insurgency leaders are Islamists and claim to be fighting a religious war to reestablish the Islamic Caliphate of centuries past. Iraq's former president, Saddam Hussein was captured by U.S. forces in December 2003. He was executed in 2006.

When did Bush say 'major combat operations' were complete in Iraq?
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A: 1 May 2003

Problem: Korean War:

On 27 June 1950, two days after the KPA invaded and three months before the Chinese entered the war, President Truman dispatched the United States Seventh Fleet to the Taiwan Strait, to prevent hostilities between the Nationalist Republic of China (Taiwan) and the People's Republic of China (PRC). On 4 August 1950, with the PRC invasion of Taiwan aborted, Mao Zedong reported to the Politburo that he would intervene in Korea when the People's Liberation Army's (PLA) Taiwan invasion force was reorganized into the PLA North East Frontier Force. China justified its entry into the war as a response to "American aggression in the guise of the UN".

What year did China decide to enter the war?
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A:
1950