Problem: Web browser:

Opera debuted in 1996; it has never achieved widespread use, having less than 2% browser usage share as of February 2012 according to Net Applications. Its Opera-mini version has an additive share, in April 2011 amounting to 1.1% of overall browser use, but focused on the fast-growing mobile phone web browser market, being preinstalled on over 40 million phones. It is also available on several other embedded systems, including Nintendo's Wii video game console.

How many game consoles has Nintendo sold?
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A: unanswerable

Problem: San Diego and its backcountry are subject to periodic wildfires. In October 2003, San Diego was the site of the Cedar Fire, which has been called the largest wildfire in California over the past century. The fire burned 280,000 acres (1,100 km2), killed 15 people, and destroyed more than 2,200 homes. In addition to damage caused by the fire, smoke resulted in a significant increase in emergency room visits due to asthma, respiratory problems, eye irritation, and smoke inhalation; the poor air quality caused San Diego County schools to close for a week. Wildfires four years later destroyed some areas, particularly within the communities of Rancho Bernardo, Rancho Santa Fe, and Ramona.
How many years after the Cedar Fire did additional fires destroy Rancho Santa Fe?
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Answer: four years later

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
To differentiate Nintendo's new home platform from the early 1980s' common perception of a troubled and shallow video game market, the company freshened its product nomenclature and positioning, and it established a strict product approval and licensing policy. The overall system was referred to as an "Entertainment System" instead of a "video game system", which was centered upon a machine called a "Control Deck" instead of a "console", and which featured software cartridges called "Game Paks" instead of "video games". The 10NES lockout chip system acted as a lock-and-key coupling of each Game Pak and Control Deck, deterring the copying or production of NES games which had not first achieved Nintendo's licensed approval. The packaging of the launch lineup of NES games bore pictures of a very close representation of the actual onscreen graphics of the game, which were of sufficiently recognizable quality on their own. Symbols on the launch games' packaging clearly indicated the genre of the game, in order to reduce consumer confusion. A 'seal of quality' was printed on all appropriately licensed game and accessory packaging. The initial seal stated, "This seal is your assurance that Nintendo has approved and guaranteed the quality of this product". This text was later changed to "Official Nintendo Seal of Quality".
What was printed on all licensed games and accessories by Nintendo?
A: seal of quality

Context and question: The Institute also maintains a dozen regional offices around the United Kingdom, it opened its first regional office for the East of England at Cambridge in 1966.
How many satellite offices does the Royal Institute run in the UK?
Answer: a dozen

Question: Football gameday traditions During home games, activities occur all around campus and different dorms decorate their halls with a traditional item (e.g. Zahm House's two-story banner). Traditional activities begin at the stroke of midnight with the Drummers' Circle. This tradition involves the drum line of the Band of the Fighting Irish and ushers in the rest of the festivities that will continue the rest of the gameday Saturday. Later that day, the trumpet section will play the Notre Dame Victory March and the Notre Dame Alma Mater under the dome. The band entire will play a concert at the steps of Bond Hall, from where they will march into Notre Dame Stadium, leading fans and students alike across campus to the game.
Is there an answer to this question: From where does the Band of the Fighting Irish lead a march to the Notre Dame Stadium for football home games?

Answer: the steps of Bond Hall

Problem: Athanasius of Alexandria:

Through the influence of the Eusebian faction at Constantinople, an Arian bishop, George of Cappadocia, was now appointed to rule the see of Alexandria. Athanasius, after remaining some days in the neighbourhood of the city, finally withdrew into the desert of Upper Egypt, where he remained for a period of six years, living the life of the monks, devoting himself to the composition of a group of writings; "Apology to Constantius", the "Apology for his Flight", the "Letter to the Monks", and the "History of the Arians".

Who wrote "Gratitude for his Flight"?
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A:
unanswerable