The problem: Answer a question about this article:
By the time of the Uruk period (c. 41002900 BC calibrated), the volume of trade goods transported along the canals and rivers of southern Mesopotamia facilitated the rise of many large, stratified, temple-centered cities (with populations of over 10,000 people) where centralized administrations employed specialized workers. It is fairly certain that it was during the Uruk period that Sumerian cities began to make use of slave labor captured from the hill country, and there is ample evidence for captured slaves as workers in the earliest texts. Artifacts, and even colonies of this Uruk civilization have been found over a wide areafrom the Taurus Mountains in Turkey, to the Mediterranean Sea in the west, and as far east as central Iran.
What have been found as far east as central Iran?
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The answer: Artifacts

The problem: Answer a question about this article:
The French were equipped with bronze, rifled muzzle-loading artillery, while the Prussians used new steel breech-loading guns, which had a far longer range and a faster rate of fire. Prussian gunners strove for a high rate of fire, which was discouraged in the French army in the belief that it wasted ammunition. In addition, the Prussian artillery batteries had 30% more guns than their French counterparts. The Prussian guns typically opened fire at a range of 23 kilometres (1.21.9 mi), beyond the range of French artillery or the Chassepot rifle. The Prussian batteries could thus destroy French artillery with impunity, before being moved forward to directly support infantry attacks.
What newer artillery were Prussians using?
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The answer: steel breech-loading guns

The problem: Answer a question about this article:
Daylight saving time (DST) or summer time is the practice of advancing clocks during summer months by one hour so that in the evening daylight is experienced an hour longer, while sacrificing normal sunrise times. Typically, regions with summer time adjust clocks forward one hour close to the start of spring and adjust them backward in the autumn to standard time.
By setting the clocks forward, the normal time of what daily event is disrupted?
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The answer: sunrise

The problem: Answer a question about this article:
The climate of Greece is primarily Mediterranean, featuring mild, wet winters and hot, dry summers. This climate occurs at all coastal locations, including Athens, the Cyclades, the Dodecanese, Crete, the Peloponnese, the Ionian Islands and parts of the Central Continental Greece region. The Pindus mountain range strongly affects the climate of the country, as areas to the west of the range are considerably wetter on average (due to greater exposure to south-westerly systems bringing in moisture) than the areas lying to the east of the range (due to a rain shadow effect).
East of the Pindus mountains, the climate is drier due to what?
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The answer:
a rain shadow effect