The problem: Answer a question about this article:
Barcelona won the treble in the 20142015 season, winning La Liga, Copa del Rey and UEFA Champions League titles, and became the first European team to have won the treble twice. On 17 May, the club clinched their 23rd La Liga title after defeating Atletico Madrid. This was Barcelona's seventh La Liga title in the last ten years. On 30 May, the club defeated Athletic Bilbao in the Copa del Rey final at Camp Nou. On 6 June, Barcelona won the UEFA Champions League final with a 31 win against Juventus, which completed the treble, the club's second in 6 years. Barcelona's attacking trio of Messi, Suarez and Neymar, dubbed MSN, scored 122 goals in all competitions, the most in a season for an attacking trio in Spanish football history.
What team has won the treble competitions twice?
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The answer: Barcelona

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Hydrogen can be prepared in several different ways, but economically the most important processes involve removal of hydrogen from hydrocarbons. Commercial bulk hydrogen is usually produced by the steam reforming of natural gas. At high temperatures (10001400 K, 7001100 C or 13002000 F), steam (water vapor) reacts with methane to yield carbon monoxide and H
2.
The most economical way to prepare hydrogen involves removing it from what?
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The answer: hydrocarbons

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The Marxist critique of capitalism developed with Friedrich Engels was, alongside liberalism and fascism, one of the defining ideological movements of the Twentieth Century. The industrial revolution produced a parallel revolution in political thought. Urbanization and capitalism greatly reshaped society. During this same period, the socialist movement began to form. In the mid-19th century, Marxism was developed, and socialism in general gained increasing popular support, mostly from the urban working class. Without breaking entirely from the past, Marx established principles that would be used by future revolutionaries of the 20th century namely Vladimir Lenin, Mao Zedong, Ho Chi Minh, and Fidel Castro. Though Hegel's philosophy of history is similar to Immanuel Kant's, and Karl Marx's theory of revolution towards the common good is partly based on Kant's view of historyMarx declared that he was turning Hegel's dialectic, which was "standing on its head", "the right side up again". Unlike Marx who believed in historical materialism, Hegel believed in the Phenomenology of Spirit. By the late 19th century, socialism and trade unions were established members of the political landscape. In addition, the various branches of anarchism, with thinkers such as Mikhail Bakunin, Pierre-Joseph Proudhon or Peter Kropotkin, and syndicalism also gained some prominence. In the Anglo-American world, anti-imperialism and pluralism began gaining currency at the turn of the 20th century.
Who developed the Marxist critique of capitalism?
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The answer: Friedrich Engels

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All signatories to the CPPCG are required to prevent and punish acts of genocide, both in peace and wartime, though some barriers make this enforcement difficult. In particular, some of the signatoriesnamely, Bahrain, Bangladesh, India, Malaysia, the Philippines, Singapore, the United States, Vietnam, Yemen, and former Yugoslaviasigned with the proviso that no claim of genocide could be brought against them at the International Court of Justice without their consent. Despite official protests from other signatories (notably Cyprus and Norway) on the ethics and legal standing of these reservations, the immunity from prosecution they grant has been invoked from time to time, as when the United States refused to allow a charge of genocide brought against it by former Yugoslavia following the 1999 Kosovo War.
During which times can a perpetrator of genocide be charged?
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The answer:
both in peace and wartime