Problem: Wayback Machine:

In 2003, Harding Earley Follmer & Frailey defended a client from a trademark dispute using the Archive's Wayback Machine. The attorneys were able to demonstrate that the claims made by the plaintiff were invalid, based on the content of their web site from several years prior. The plaintiff, Healthcare Advocates, then amended their complaint to include the Internet Archive, accusing the organization of copyright infringement as well as violations of the DMCA and the Computer Fraud and Abuse Act. Healthcare Advocates claimed that, since they had installed a robots.txt file on their web site, even if after the initial lawsuit was filed, the Archive should have removed all previous copies of the plaintiff web site from the Wayback Machine. The lawsuit was settled out of court.

What laws did Healthcare Advocates accuse Early Follmer & Frailey of having broken?
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A: unanswerable

Problem: Copper:

Copper, silver and gold are in group 11 of the periodic table, and they share certain attributes: they have one s-orbital electron on top of a filled d-electron shell and are characterized by high ductility and electrical conductivity. The filled d-shells in these elements do not contribute much to the interatomic interactions, which are dominated by the s-electrons through metallic bonds. Unlike metals with incomplete d-shells, metallic bonds in copper are lacking a covalent character and are relatively weak. This explains the low hardness and high ductility of single crystals of copper. At the macroscopic scale, introduction of extended defects to the crystal lattice, such as grain boundaries, hinders flow of the material under applied stress, thereby increasing its hardness. For this reason, copper is usually supplied in a fine-grained polycrystalline form, which has greater strength than monocrystalline forms.

What is the only property that copper, silver and gold have in common?
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A: unanswerable

Problem: Hokkien:

Hokkien has one of the most diverse phoneme inventories among Chinese varieties, with more consonants than Standard Mandarin or Cantonese. Vowels are more-or-less similar to that of Standard Mandarin. Hokkien varieties retain many pronunciations that are no longer found in other Chinese varieties. These include the retention of the /t/ initial, which is now /t/ (Pinyin 'zh') in Mandarin (e.g. 'bamboo' is tik, but zhu in Mandarin), having disappeared before the 6th century in other Chinese varieties.

What does Mandarin have that isn't found in other Chinese varieties?
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A: unanswerable

Problem: Seven Years%27 War:

The war has been described as the first "world war", although this label was also given to various earlier conflicts like the Eighty Years' War, the Thirty Years' War, the War of the Spanish Succession and the War of the Austrian Succession, and to later conflicts like the Napoleonic Wars. The term "Second Hundred Years' War" has been used in order to describe the almost continuous level of world-wide conflict during the entire 18th century, reminiscent of the more famous and compact struggle of the 14th century.

What is the grandest label that historians have used to describe the Seven Years' War?
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A:
The war has been described as the first "world war"