The problem: Answer a question about this article:
From 1904 to 1907, the Herero and the Namaqua took up arms against the Germans and in calculated punitive action by the German occupiers, the 'first genocide of the Twentieth Century' was committed. In the Herero and Namaqua genocide, 10,000 Nama (half the population) and approximately 65,000 Hereros (about 80% of the population) were systematically murdered. The survivors, when finally released from detention, were subjected to a policy of dispossession, deportation, forced labour, racial segregation and discrimination in a system that in many ways anticipated apartheid.
Herero and what other group took action against German occupiers?
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The answer: Namaqua

The problem: Answer a question about this article:
Switzerland is one of the richest and wealthiest countries in the world. Switzerland ranks top or close to the top in several metrics of national performance, including government transparency, civil liberties, quality of life, economic competitiveness, and human development. It has the highest nominal wealth (financial and non-financial assets) per adult in the world according to Credit Suisse and the eighth-highest per capita gross domestic product on the IMF list. Zurich and Geneva have each been ranked among the top cities with the highest quality of life in the world, with the former ranked 2nd globally, according to Mercer.
Which country has the highest nominal wealth per adult in the world according to Credit Suisse?
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The answer: Switzerland

The problem: Answer a question about this article:
Portuguese natives comprise a very small percentage of Guinea-Bissauans. After Guinea-Bissau gained independence, most of the Portuguese nationals left the country. The country has a tiny Chinese population. These include traders and merchants of mixed Portuguese and Chinese ancestry from Macau, a former Asian Portuguese colony.
Who left the country after Guinea-Bissau gained independence?
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The answer: Portuguese nationals

The problem: Answer a question about this article:
There were serious scientific objections to the process of natural selection as the key mechanism of evolution, including Karl von Nageli's insistence that a trivial characteristic with no adaptive advantage could not be developed by selection. Darwin conceded that these could be linked to adaptive characteristics. His estimate that the age of the Earth allowed gradual evolution was disputed by William Thomson (later awarded the title Lord Kelvin), who calculated that it had cooled in less than 100 million years. Darwin accepted blending inheritance, but Fleeming Jenkin calculated that as it mixed traits, natural selection could not accumulate useful traits. Darwin tried to meet these objections in the 5th edition. Mivart supported directed evolution, and compiled scientific and religious objections to natural selection. In response, Darwin made considerable changes to the sixth edition. The problems of the age of the Earth and heredity were only resolved in the 20th century.
Who disputed Darwin's estimate that the age of the earth allowed gradual evolution of species?
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The answer:
William Thomson