Problem: Dutch language:

Some nouns have two different diminutives, each with a different meaning: bloem (flower) bloempje (lit. "small flower"), but bloemetje (lit. also "small flower", meaning bouquet). A few nouns exist solely in a diminutive form, e.g. zeepaardje (seahorse), while many, e.g. meisje (girl), originally a diminutive of meid (maid), have acquired a meaning independent of their non-diminutive forms. A diminutive can sometimes be added to an uncountable noun to refer to a single portion: ijs (ice, ice cream) ijsje (ice cream treat, cone of ice cream), bier (beer) biertje. Some diminutive forms only exist in plural, e.g. kleertjes (clothing).

What's the Dutch word for "seahorse" that has no non-diminutive form?
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A: zeepaardje

Problem: Strasbourg:

Many people from Strasbourg were incorporated in the German Army against their will, and were sent to the eastern front, those young men and women were called Malgre-nous. Many tried to escape from the incorporation, join the French Resistance, or desert the Wehrmacht but many couldn't because they were running the risk of having their families sent to work or concentration camps by the Germans. Many of these men, especially those who did not answer the call immediately, were pressured to "volunteer" for service with the SS, often by direct threats on their families. This threat obliged the majority of them to remain in the German army. After the war, the few that survived were often accused of being traitors or collaborationists, because this tough situation was not known in the rest of France, and they had to face the incomprehension of many. In July 1944, 1500 malgre-nous were released from Soviet captivity and sent to Algiers, where they joined the Free French Forces. Nowadays history recognizes the suffering of those people, and museums, public discussions and memorials have been built to commemorate this terrible period of history of this part of Eastern France (Alsace and Moselle). Liberation of Strasbourg took place on 23 November 1944.

What were the men and women sent to the eastern front against their will called?
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A: Malgre-nous

Problem: Treaty:

There are several reasons an otherwise valid and agreed upon treaty may be rejected as a binding international agreement, most of which involve problems created at the formation of the treaty.[citation needed] For example, the serial Japan-Korea treaties of 1905, 1907 and 1910 were protested; and they were confirmed as "already null and void" in the 1965 Treaty on Basic Relations between Japan and the Republic of Korea.

What treaties between Japan and Korea are examples of treaties that were declared null and void?
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A: the serial Japan-Korea treaties of 1905, 1907 and 1910

Problem: Religion in ancient Rome:

In the Regal era, a rex sacrorum (king of the sacred rites) supervised regal and state rites in conjunction with the king (rex) or in his absence, and announced the public festivals. He had little or no civil authority. With the abolition of monarchy, the collegial power and influence of the Republican pontifices increased. By the late Republican era, the flamines were supervised by the pontifical collegia. The rex sacrorum had become a relatively obscure priesthood with an entirely symbolic title: his religious duties still included the daily, ritual announcement of festivals and priestly duties within two or three of the latter but his most important priestly role the supervision of the Vestals and their rites fell to the more politically powerful and influential pontifex maximus.

What group's power increased after the rise of the Roman Republic?
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A:
Republican pontifices