Problem: Zhejiang:

Zhejiang, as the heartland of the Jiangnan (Yangtze River Delta), remained the wealthiest area during the Six Dynasties (220 or 222589), Sui, and Tang. After being incorporated into the Sui dynasty, its economic richness was used for the Sui dynasty's ambitions to expand north and south, particularly into Korea and Vietnam. The plan led the Sui dynasty to restore and expand the network which became the Grand Canal of China. The Canal regularly transported grains and resources from Zhejiang, through its metropolitan center Hangzhou (and its hinterland along both the Zhe River and the shores of Hangzhou Bay), and from Suzhou, and thence to the North China Plain. The debacle of the Korean war led to Sui's overthrow by the Tang, who then presided over a centuries-long golden age for the country. Zhejiang was an important economic center of the empire's Jiangnan East Circuit and was considered particularly prosperous. Throughout the Tang dynasty, The Grand Canal had remained effective, transporting grains and material resources to North China plain and metropolitan centers of the empire. As the Tang Dynasty disintegrated, Zhejiang constituted most of the territory of the regional kingdom of Wuyue.

What ocean was one of the Grand Canal of China's hinterlands?
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A: unanswerable

Problem: The Sumerians were one of the first known beer drinking societies. Cereals were plentiful and were the key ingredient in their early brew. They brewed multiple kinds of beer consisting of wheat, barley, and mixed grain beers. Beer brewing was very important to the Sumerians. It was referenced in the Epic of Gilgamesh when Enkidu was introduced to the food and beer of Gilgamesh's people: "Drink the beer, as is the custom of the land... He drank the beer-seven jugs! and became expansive and sang with joy!"
Who invented beer?
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Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Mary's special position within God's purpose of salvation as "God-bearer" (Theotokos) is recognised in a number of ways by some Anglican Christians. All the member churches of the Anglican Communion affirm in the historic creeds that Jesus was born of the Virgin Mary, and celebrates the feast days of the Presentation of Christ in the Temple. This feast is called in older prayer books the Purification of the Blessed Virgin Mary on February 2. The Annunciation of our Lord to the Blessed Virgin on March 25 was from before the time of Bede until the 18th century New Year's Day in England. The Annunciation is called the "Annunciation of our Lady" in the 1662 Book of Common Prayer. Anglicans also celebrate in the Visitation of the Blessed Virgin on 31 May, though in some provinces the traditional date of July 2 is kept. The feast of the St. Mary the Virgin is observed on the traditional day of the Assumption, August 15. The Nativity of the Blessed Virgin is kept on September 8.
On what date is the Presentation of Christ in the Temple celebrated by Anglicans?
A: February 2

Context and question: All of the ceremonial county of Somerset is covered by the Avon and Somerset Constabulary, a police force which also covers Bristol and South Gloucestershire. The Devon and Somerset Fire and Rescue Service was formed in 2007 upon the merger of the Somerset Fire and Rescue Service with its neighbouring Devon service; it covers the area of Somerset County Council as well as the entire ceremonial county of Devon. The unitary districts of North Somerset and Bath & North East Somerset are instead covered by the Avon Fire and Rescue Service, a service which also covers Bristol and South Gloucestershire. The South Western Ambulance Service covers the entire South West of England, including all of Somerset; prior to February 2013 the unitary districts of Somerset came under the Great Western Ambulance Service, which merged into South Western. The Dorset and Somerset Air Ambulance is a charitable organisation based in the county.
In what year was the South Western Ambulance Service established?
Answer: unanswerable

Question: In 1900, after Galveston was struck by a devastating hurricane, efforts to make Houston into a viable deep-water port were accelerated. The following year, oil discovered at the Spindletop oil field near Beaumont prompted the development of the Texas petroleum industry. In 1902, President Theodore Roosevelt approved a $1 million improvement project for the Houston Ship Channel. By 1910 the city's population had reached 78,800, almost doubling from a decade before. African-Americans formed a large part of the city's population, numbering 23,929 people, or nearly one-third of the residents.
Is there an answer to this question: What event caused an increase in effort to promote the Houston port?

Answer: hurricane

Question: One example of omnidirectional antennas is the very common vertical antenna or whip antenna consisting of a metal rod (often, but not always, a quarter of a wavelength long). A dipole antenna is similar but consists of two such conductors extending in opposite directions, with a total length that is often, but not always, a half of a wavelength long. Dipoles are typically oriented horizontally in which case they are weakly directional: signals are reasonably well radiated toward or received from all directions with the exception of the direction along the conductor itself; this region is called the antenna blind cone or null.
Is there an answer to this question: What type of antenna would most likely be a half a wavelength long?

Answer:
dipole