Problem: San Diego:

Major state highways include SR 94, which connects downtown with I-805, I-15 and East County; SR 163, which connects downtown with the northeast part of the city, intersects I-805 and merges with I-15 at Miramar; SR 52, which connects La Jolla with East County through Santee and SR 125; SR 56, which connects I-5 with I-15 through Carmel Valley and Rancho Penasquitos; SR 75, which spans San Diego Bay as the San Diego-Coronado Bridge, and also passes through South San Diego as Palm Avenue; and SR 905, which connects I-5 and I-805 to the Otay Mesa Port of Entry.

Where does SR 94 merge with I-51?
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A: unanswerable

Problem: Carnival was introduced by Portuguese settlers. The celebration is celebrated on each of the archipelago's nine inhabited islands. In Mindelo, Sao Vicente groups challenge each other for a yearly prize. It has imported various Brazilian carnival traditions. The celebration in SaoNicolau is more traditional, where established groups parade through the Ribeira Brava, gathering in the town square, although it has adopted drums, floats and costumes from Brazil. In Sao Nicolau three groups, Copa Cabana, Estrela Azul and Brilho Da Zona constructs a painted float using fire, newspaper for the mold, iron and steel to for structure. Carnival Sao Nicolau is celebrated over three days: dawn Saturday, Sunday afternoon, and Tuesday.
What do groups in Mindelo challenge each other for?
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Answer: a yearly prize

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
MPEG-1 or MPEG-2 Audio Layer III, more commonly referred to as MP3, is an audio coding format for digital audio which uses a form of lossy data compression. It is a common audio format for consumer audio streaming or storage, as well as a de facto standard of digital audio compression for the transfer and playback of music on most digital audio players.
What is the common name for MPEG-2 Audio Layer III?
A: MP3

Context and question: The United Healthcare/Pacificare nutrition guideline recommends a whole plant food diet, and recommends using protein only as a condiment with meals. A National Geographic cover article from November 2005, entitled The Secrets of Living Longer, also recommends a whole plant food diet. The article is a lifestyle survey of three populations, Sardinians, Okinawans, and Adventists, who generally display longevity and "suffer a fraction of the diseases that commonly kill people in other parts of the developed world, and enjoy more healthy years of life." In sum, they offer three sets of 'best practices' to emulate. The rest is up to you. In common with all three groups is to "Eat fruits, vegetables, and whole grains."
Other than fruits and vegetables, what other product was highly recommended to be a part of a healthy diet?
Answer: whole grains

Question: Nonetheless, within a few years of his death, Gregory of Nazianzus called him the "Pillar of the Church". His writings were well regarded by all Church fathers who followed, in both the West and the East, who noted their rich devotion to the Word-become-man, great pastoral concern, and profound interest in monasticism. Athanasius is counted as one of the four great Eastern Doctors of the Church in the Roman Catholic Church. In the Eastern Orthodox Church, he is labeled the "Father of Orthodoxy". Some Protestants label him "Father of the Canon". Athanasius is venerated as a Christian saint, whose feast day is 2 May in Western Christianity, 15 May in the Coptic Orthodox Church, and 18 January in the other Eastern Orthodox Churches. He is venerated by the Oriental and Eastern Orthodox Churches, the Roman Catholic Church, the Lutherans, and the Anglican Communion.
Is there an answer to this question: What was he known as soon after he was born?

Answer: unanswerable

Problem: Military history of the United States:

By summer 1918, a million American soldiers, or "doughboys" as they were often called, of the American Expeditionary Forces were in Europe under the command of John J. Pershing, with 25,000 more arriving every week. The failure of Germany's spring offensive exhausted its reserves and they were unable to launch new offensives. The German Navy and home front then revolted and a new German government signed a conditional surrender, the Armistice, ending the war against the western front on November 11, 1918.

When did fighting on the western front end?
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A:
November 11, 1918