Problem: The basic ingredients of beer are water; a starch source, such as malted barley, able to be saccharified (converted to sugars) then fermented (converted into ethanol and carbon dioxide); a brewer's yeast to produce the fermentation; and a flavouring such as hops. A mixture of starch sources may be used, with a secondary starch source, such as maize (corn), rice or sugar, often being termed an adjunct, especially when used as a lower-cost substitute for malted barley. Less widely used starch sources include millet, sorghum and cassava root in Africa, and potato in Brazil, and agave in Mexico, among others. The amount of each starch source in a beer recipe is collectively called the grain bill.
What does starch turn into when fermented in addition to carbon?
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Answer: unanswerable

Problem: The Stonewall riots were a series of spontaneous, violent demonstrations by members of the gay community against a police raid that took place in the early morning hours of June 28, 1969, at the Stonewall Inn in the Greenwich Village neighborhood of Lower Manhattan. They are widely considered to constitute the single most important event leading to the gay liberation movement and the modern fight for LGBT rights in the United States.
On what date did the Stonewall riots take place?
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Answer: June 28, 1969

Problem: Portuguese universities have existed since 1290. The oldest Portuguese university was first established in Lisbon before moving to Coimbra. Historically, within the scope of the Portuguese Empire, the Portuguese founded the oldest engineering school of the Americas (the Real Academia de Artilharia, Fortificacao e Desenho of Rio de Janeiro) in 1792, as well as the oldest medical college in Asia (the Escola Medico-Cirurgica of Goa) in 1842. The largest university in Portugal is the University of Lisbon.
Since when have Portuguese universities existed?
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Answer:
1290