Problem: Department store:

In the 21st century the most famous department store in Russia is GUM in Moscow, followed by TsUM and the Petrovsky Passage. Other popular stores are Mega (shopping malls), Stockmann, and Marks & Spencer. Media Markt, M-video, Technosila, and White Wind (Beliy Veter) sell large number of electronic devices. In St. Petersburg The Passage has been popular since the 1840s. 1956 Soviet film Behind Store Window ( ) on YouTube depicts operation of a Moscow department store in 1950's.

In what city is the Passage located?
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A: St. Petersburg

Problem: Franco-Prussian War:

The French Army consisted in peacetime of approximately 400,000 soldiers, some of them regulars, others conscripts who until 1869 served the comparatively long period of seven years with the colours. Some of them were veterans of previous French campaigns in the Crimean War, Algeria, the Franco-Austrian War in Italy, and in the Franco-Mexican War. However, following the "Seven Weeks War" between Prussia and Austria four years earlier, it had been calculated that the French Army could field only 288,000 men to face the Prussian Army when perhaps 1,000,000 would be required. Under Marshal Adolphe Niel, urgent reforms were made. Universal conscription (rather than by ballot, as previously) and a shorter period of service gave increased numbers of reservists, who would swell the army to a planned strength of 800,000 on mobilisation. Those who for any reason were not conscripted were to be enrolled in the Garde Mobile, a militia with a nominal strength of 400,000. However, the Franco-Prussian War broke out before these reforms could be completely implemented. The mobilisation of reservists was chaotic and resulted in large numbers of stragglers, while the Garde Mobile were generally untrained and often mutinous.

If a citizen was for some reason not conscripted, in what militia were they were registered?
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A: the Garde Mobile

Problem: Age of Enlightenment:

A healthy, and legal, publishing industry existed throughout Europe, although established publishers and book sellers occasionally ran afoul of the law. The Encyclopedie, for example, condemned not only by the King but also by Clement XII, nevertheless found its way into print with the help of the aforementioned Malesherbes and creative use of French censorship law. But many works were sold without running into any legal trouble at all. Borrowing records from libraries in England, Germany and North America indicate that more than 70 percent of books borrowed were novels. Less than 1 percent of the books were of a religious nature, indicating the general trend of declining religiosity.

What percentage of books borrowed in England, Germany, and Norath America were novels?
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A: 70

Problem: American Idol:

The show had originally planned on having four judges following the Pop Idol format; however, only three judges had been found by the time of the audition round in the first season, namely Randy Jackson, Paula Abdul and Simon Cowell. A fourth judge, radio DJ Stryker, was originally chosen but he dropped out citing "image concerns". In the second season, New York radio personality Angie Martinez had been hired as a fourth judge but withdrew only after a few days of auditions due to not being comfortable with giving out criticism. The show decided to continue with the three judges format until season eight. All three original judges stayed on the judging panel for eight seasons.

When did American Idol change to a four-judge panel?
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A:
season eight