Problem: USB:

Though most computers since mid-2004 can boot from USB mass storage devices, USB is not intended as a primary bus for a computer's internal storage. Buses such as Parallel ATA (PATA or IDE), Serial ATA (SATA), or SCSI fulfill that role in PC class computers. However, USB has one important advantage, in that it is possible to install and remove devices without rebooting the computer (hot-swapping), making it useful for mobile peripherals, including drives of various kinds (given SATA or SCSI devices may or may not support hot-swapping).

What is an important advantage of USB?
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A: it is possible to install and remove devices without rebooting the computer


Problem: Seven Years%27 War:

The British—by inclination as well as for practical reasons—had tended to avoid large-scale commitments of troops on the Continent. They sought to offset the disadvantage of this in Europe by allying themselves with one or more Continental powers whose interests were antithetical to those of their enemies, particularly France.:15–16 By subsidising the armies of continental allies, Britain could turn London's enormous financial power to military advantage. In the Seven Years' War, the British chose as their principal partner the greatest general of the day, Frederick the Great of Prussia, then the rising power in central Europe, and paid Frederick substantial subsidies for his campaigns.:106 This was accomplished in the Diplomatic Revolution of 1756, in which Britain ended its long-standing alliance with Austria in favor of Prussia, leaving Austria to side with France. In marked contrast to France, Britain strove to prosecute the war actively in the colonies, taking full advantage of its naval power. :64–66 The British pursued a dual strategy – naval blockade and bombardment of enemy ports, and rapid movement of troops by sea. They harassed enemy shipping and attacked enemy colonies, frequently using colonists from nearby British colonies in the effort.

Who led the armies supporting British interests in central Europe?
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A: Frederick the Great of Prussia


Problem: High-definition television:

In 1949, France started its transmissions with an 819 lines system (with 737 active lines). The system was monochrome only, and was used only on VHF for the first French TV channel. It was discontinued in 1983.

 What did France start transmissions with in 1939?
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A: unanswerable


Problem: Russian Soviet Federative Socialist Republic:

On December 30, 1922, with the creation of the Soviet Union, Russia became one of six republics within the federation of the Union of Soviet Socialist Republics. The final Soviet name for the republic, the Russian Soviet Federative Socialist Republic, was adopted in the Soviet Constitution of 1936. By that time, Soviet Russia had gained roughly the same borders of the old Tsardom of Russia before the Great Northern War of 1700.

How many republics weren't in the USSR?
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A:
unanswerable