Problem: Arena Football League:

The first game in Arena Football League history was played on June 19, 1987, between the Gladiators and Commandos at Pittsburgh Civic Arena in front of 12,117 fans. The game was deliberately not televised so that it could be analyzed and any follies and failures would not be subject to national public scrutiny. Following the inaugural game, tweaks and adjustments were made, and the first season continued. The Dynamite and Bruisers played in the first-ever televised AFL game the next night, on June 20, 1987, at the Rosemont Horizon in suburban Chicago on ESPN with Bob Rathbun and Lee Corso calling the play. The broadcast showed a short clip of the Commandos-Gladiators game. Each team played six games, two against each other team. The top two teams, Denver and Pittsburgh, then competed in the first-ever AFL championship game, ArenaBowl I.

At what venue did the first televised Arena Football League game occur?
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A: the Rosemont Horizon

Problem: In 1173 John's elder brothers, backed by Eleanor, rose in revolt against Henry in the short-lived rebellion of 1173 to 1174. Growing irritated with his subordinate position to Henry II and increasingly worried that John might be given additional lands and castles at his expense, Henry the Young King travelled to Paris and allied himself with Louis VII. Eleanor, irritated by her husband's persistent interference in Aquitaine, encouraged Richard and Geoffrey to join their brother Henry in Paris. Henry II triumphed over the coalition of his sons, but was generous to them in the peace settlement agreed at Montlouis. Henry the Young King was allowed to travel widely in Europe with his own household of knights, Richard was given Aquitaine back, and Geoffrey was allowed to return to Brittany; only Eleanor was imprisoned for her role in the revolt.
Who backed John's elder brothers?
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Answer: Eleanor

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Computer security, also known as cybersecurity or IT security, is the protection of information systems from theft or damage to the hardware, the software, and to the information on them, as well as from disruption or misdirection of the services they provide. It includes controlling physical access to the hardware, as well as protecting against harm that may come via network access, data and code injection, and due to malpractice by operators, whether intentional, accidental, or due to them being tricked into deviating from secure procedures.
How can a computer be attacked?
A: unanswerable

Context and question: Houston's highway system has a hub-and-spoke freeway structure serviced by multiple loops. The innermost loop is Interstate 610, which encircles downtown, the medical center, and many core neighborhoods with around a 8-mile (13 km) diameter. Beltway 8 and its freeway core, the Sam Houston Tollway, form the middle loop at a diameter of roughly 23 miles (37 km). A proposed highway project, State Highway 99 (Grand Parkway), will form a third loop outside of Houston, totaling 180 miles in length and making an almost-complete circumference, with the exception of crossing the ship channel. As of June 2014, two of eleven segments of State Highway 99 have been completed to the west of Houston, and three northern segments, totaling 38 miles, are actively under construction and scheduled to open to traffic late in 2015. In addition to the Sam Houston Tollway loop mentioned above, the Harris County Toll Road Authority currently operates four spoke tollways: The Katy Managed Lanes of Interstate 10, the Hardy Toll Road, the Westpark Tollway, and the Fort Bend Parkway Extension. Other spoke roads either planned or under construction include Crosby Freeway, and the future Alvin Freeway.
What is the type of freeway system that serves Houston?
Answer: hub-and-spoke

Question: The roots of Greek success in the Ottoman Empire can be traced to the Greek tradition of education and commerce. It was the wealth of the extensive merchant class that provided the material basis for the intellectual revival that was the prominent feature of Greek life in the half century and more leading to the outbreak of the Greek War of Independence in 1821. Not coincidentally, on the eve of 1821, the three most important centres of Greek learning were situated in Chios, Smyrna and Aivali, all three major centres of Greek commerce. Greek success was also favoured by Greek domination of the Christian Orthodox church.
Is there an answer to this question: Who held much of the wealth in the Greek society ?

Answer: the wealth of the extensive merchant class

Question: Namibia conducts a census every ten years. After independence the first Population and Housing Census was carried out in 1991, further rounds followed in 2001 and 2011. The data collection method is to count every person resident in Namibia on the census reference night, wherever they happen to be. This is called the de facto method. For enumeration purposes the country is demarcated into 4,042 enumeration areas. These areas do not overlap with constituency boundaries to get reliable data for election purposes as well.
Is there an answer to this question: The enumeration areas in Namibia do not overlap with what in order to get reliable data?

Answer:
constituency boundaries