Problem: Classical music:

The family of instruments used, especially in orchestras, grew. A wider array of percussion instruments began to appear. Brass instruments took on larger roles, as the introduction of rotary valves made it possible for them to play a wider range of notes. The size of the orchestra (typically around 40 in the Classical era) grew to be over 100. Gustav Mahler's 1906 Symphony No. 8, for example, has been performed with over 150 instrumentalists and choirs of over 400.

What size orchestras have performed Gustav Mahler's 1906 Symphony No. 8?
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A: over 150


Problem: The design architecture of USB is asymmetrical in its topology, consisting of a host, a multitude of downstream USB ports, and multiple peripheral devices connected in a tiered-star topology. Additional USB hubs may be included in the tiers, allowing branching into a tree structure with up to five tier levels. A USB host may implement multiple host controllers and each host controller may provide one or more USB ports. Up to 127 devices, including hub devices if present, may be connected to a single host controller. USB devices are linked in series through hubs. One hub—built into the host controller—is the root hub.
What HUB is built into the host controller?
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Answer: the root hub


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
With the neoplatonist Plotinus, wrote Nathaniel Alfred Boll; "there even appears, probably for the first time in Western philosophy, idealism that had long been current in the East even at that time, for it taught... that the soul has made the world by stepping from eternity into time...". Similarly, in regard to passages from the Enneads, "The only space or place of the world is the soul" and "Time must not be assumed to exist outside the soul", Ludwig Noiré wrote: "For the first time in Western philosophy we find idealism proper in Plotinus, However, Plotinus does not address whether we know external objects, unlike Schopenhauer and other modern philosophers.
According to Noiré, who was the first true Western idealist?
A: Plotinus


Context and question: Presbyterian government is by councils (known as courts) of elders. Teaching and ruling elders are ordained and convene in the lowest council known as a session or consistory responsible for the discipline, nurture, and mission of the local congregation. Teaching elders (pastors) have responsibility for teaching, worship, and performing sacraments. Pastors are called by individual congregations. A congregation issues a call for the pastor's service, but this call must be ratified by the local presbytery.
What is the Presbyterian government known as?
Answer: councils (known as courts) of elders


Question: The city also has several branches of renowned international restaurants and chefs. These include Paris' Au Pied de Cochon and Brasserie Lipp, Philippe (by Philippe Chow); Nobu, Morimoto; Pámpano, owned by Mexican-raised opera legend Plácido Domingo. There are branches of the exclusive Japanese restaurant Suntory, Rome's famed Alfredo, as well as New York steakhouses Morton's and The Palm, and Monte Carlo's BeefBar. Three of the most famous Lima-based Haute Peruvian restaurants, La Mar, Segundo Muelle and Astrid y Gastón have locations in Mexico City.
Is there an answer to this question: What is one of the famous Lima-based restaurants in Mexico City?

Answer: La Mar


Problem: Cubism:

This technique of representing simultaneity, multiple viewpoints (or relative motion) is pushed to a high degree of complexity in Gleizes' monumental Le Dépiquage des Moissons (Harvest Threshing), exhibited at the 1912 Salon de la Section d'Or, Le Fauconnier’s Abundance shown at the Indépendants of 1911, and Delaunay's City of Paris, shown at the Indépendants in 1912. These ambitious works are some of the largest paintings in the history of Cubism. Léger’s The Wedding, also shown at the Salon des Indépendants in 1912, gave form to the notion of simultaneity by presenting different motifs as occurring within a single temporal frame, where responses to the past and present interpenetrate with collective force. The conjunction of such subject matter with simultaneity aligns Salon Cubism with early Futurist paintings by Umberto Boccioni, Gino Severini and Carlo Carrà; themselves made in response to early Cubism.

What did not give form to the notion of simultaneity? 
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A:
unanswerable