Problem: Predation:

While successful predation results in a gain of energy, hunting invariably involves energetic costs as well. When hunger is not an issue, in general most predators will not seek to attack prey since the costs outweigh the benefits. For instance, a large predatory fish like a shark that is well fed in an aquarium will typically ignore the smaller fish swimming around it (while the prey fish take advantage of the fact that the apex predator is apparently uninterested). Surplus killing represents a deviation from this type of behaviour. The treatment of consumption in terms of cost-benefit analysis is known as optimal foraging theory, and has been quite successful in the study of animal behavior. In general, costs and benefits are considered in energy gain per unit time, though other factors are also important, such as essential nutrients that have no caloric value but are necessary for survival and health.

What theory describes how prey fish take advantage of a predator?
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A: unanswerable

Problem: Miami:

Miami is a major television production center, and the most important city in the U.S. for Spanish language media. Univision, Telemundo and UniMAS have their headquarters in Miami, along with their production studios. The Telemundo Television Studios produces much of the original programming for Telemundo, such as their telenovelas and talk shows. In 2011, 85% of Telemundo's original programming was filmed in Miami. Miami is also a major music recording center, with the Sony Music Latin and Universal Music Latin Entertainment headquarters in the city, along with many other smaller record labels. The city also attracts many artists for music video and film shootings.

Along with UniMAS and Univision, what Spanish language radio station is headquartered in Miami?
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A: unanswerable

Problem: Queen Victoria:

During Victoria's first pregnancy in 1840, in the first few months of the marriage, 18-year-old Edward Oxford attempted to assassinate her while she was riding in a carriage with Prince Albert on her way to visit her mother. Oxford fired twice, but either both bullets missed or, as he later claimed, the guns had no shot. He was tried for high treason and found guilty, but was acquitted on the grounds of insanity. In the immediate aftermath of the attack, Victoria's popularity soared, mitigating residual discontent over the Hastings affair and the bedchamber crisis. Her daughter, also named Victoria, was born on 21 November 1840. The Queen hated being pregnant, viewed breast-feeding with disgust, and thought newborn babies were ugly. Nevertheless, over the following seventeen years, she and Albert had a further eight children: Albert Edward, Prince of Wales (b. 1841), Alice (b. 1843), Alfred (b. 1844), Helena (b. 1846), Louise (b. 1848), Arthur (b. 1850), Leopold (b. 1853) and Beatrice (b. 1857).

Who was riding in the carriage with Victoria when Oxford attempted to assasinate her?
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A: Prince Albert

Problem: Modern history:

The First World War began in 1914 and lasted to the final Armistice in 1918. The Allied Powers, led by the British Empire, France, Russia until March 1918, Japan and the United States after 1917, defeated the Central Powers, led by the German Empire, Austro-Hungarian Empire and the Ottoman Empire. The war caused the disintegration of four empiresthe Austro-Hungarian, German, Ottoman, and Russian onesas well as radical change in the European and West Asian maps. The Allied powers before 1917 are referred to as the Triple Entente, and the Central Powers are referred to as the Triple Alliance.

Who defeated the Central Powers led by the German Empire Austro-Hungarian Empire and the Ottoman Empire??
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A:
Japan and the United States