Problem: Rajasthan:

Parts of what is now Rajasthan were part of the Indus Valley Civilization. Kalibangan, in Hanumangarh district, was a major provincial capital of the Indus Valley Civilization,. It is believed that Western Kshatrapas (40535 BC) were Saka rulers of the western part of India (Saurashtra and Malwa: modern Gujarat, Southern Sindh, Maharashtra, Rajasthan). They were successors to the Indo-Scythians and were contemporaneous with the Kushans, who ruled the northern part of the Indian subcontinent. The Indo-Scythians invaded the area of Ujjain and established the Saka era (with their calendar), marking the beginning of the long-lived Saka Western Satraps state. Matsya, a state of the Vedic civilisation of India, is said to roughly corresponded to the former state of Jaipur in Rajasthan and included the whole of Alwar with portions of Bharatpur. The capital of Matsya was at Viratanagar (modern Bairat), which is said to have been named after its founder king Virata.

What area did the Saurashtra invade to establish the Saka era?
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A: unanswerable

Problem: Cubism formed an important link between early-20th-century art and architecture. The historical, theoretical, and socio-political relationships between avant-garde practices in painting, sculpture and architecture had early ramifications in France, Germany, the Netherlands and Czechoslovakia. Though there are many points of intersection between Cubism and architecture, only a few direct links between them can be drawn. Most often the connections are made by reference to shared formal characteristics: faceting of form, spatial ambiguity, transparency, and multiplicity.
What are the four formal characteristics that are never connected with Cubism?
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Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Music was an important part of both secular and spiritual culture, and in the universities it made up part of the quadrivium of the liberal arts. From the early 13th century, the dominant sacred musical form had been the motet; a composition with text in several parts. From the 1330s and onwards, emerged the polyphonic style, which was a more complex fusion of independent voices. Polyphony had been common in the secular music of the Provencal troubadours. Many of these had fallen victim to the 13th-century Albigensian Crusade, but their influence reached the papal court at Avignon.
What style of sacred musical form emerged in the 1330s?
A: polyphonic

Context and question: Beginning with Immanuel Kant, German idealists such as G. W. F. Hegel, Johann Gottlieb Fichte, Friedrich Wilhelm Joseph Schelling, and Arthur Schopenhauer dominated 19th-century philosophy. This tradition, which emphasized the mental or "ideal" character of all phenomena, gave birth to idealistic and subjectivist schools ranging from British idealism to phenomenalism to existentialism. The historical influence of this branch of idealism remains central even to the schools that rejected its metaphysical assumptions, such as Marxism, pragmatism and positivism.
What schools of thought were contrary to British idealism?
Answer: unanswerable

Question: During the 19th century, Karl Marx and Friedrich Engels extended the concept of materialism to elaborate a materialist conception of history centered on the roughly empirical world of human activity (practice, including labor) and the institutions created, reproduced, or destroyed by that activity (see materialist conception of history). Later Marxists developed the notion of dialectical materialism which characterized later Marxist philosophy and method.
Is there an answer to this question: Who was Karl Marx's enemy?

Answer: unanswerable

In intelligent mammals, such as primates, the cerebrum is larger relative to the rest of the brain. Intelligence itself is not easy to define, but indications of intelligence include the ability to learn, matched with behavioral flexibility. Rats, for example, are considered to be highly intelligent, as they can learn and perform new tasks, an ability that may be important when they first colonize a fresh habitat. In some mammals, food gathering appears to be related to intelligence: a deer feeding on plants has a brain smaller than a cat, which must think to outwit its prey.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What part of the brain is larger in rats compared to the rest of the brain?
Ah, so..
unanswerable