Problem: Windows 8:

Backup and Restore, the backup component of Windows, is deprecated. It still ships with Windows 8 and continues to work on preset schedules, but is pushed to the background and can only be accessed through a Control Panel applet called "Windows 7 File Recovery".:76 Shadow Copy, a component of Windows Explorer that once saved previous versions of changed files, no longer protects local files and folders. It can only access previous versions of shared files stored on a Windows Server computer.:74 The subsystem on which these components worked, however, is still available for other software to use.:74

What does :67 Shadow Copy do?
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A: unanswerable

Problem: The City of Plymouth is divided into 20 wards, 17 of which elect three councillors and the other three electing two councillors, making up a total council of 57. Each year a third of the council is up for election for three consecutive years there are no elections on the following "fourth" year, which is when County Council elections take place. The total electorate for Plymouth was 188,924 in April 2015. The local election of 7 May 2015 resulted in a political composition of 28 Labour councillors, 26 Conservative and 3 UKIP resulting in a Labour administration. Plymouth City Council is formally twinned with: Brest, France (1963), Gdynia, Poland (1976), Novorossiysk, Russia (1990) San Sebastian, Spain (1990) and Plymouth, United States (2001).
How many wards in Plymouth elect two councillors?
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Answer: three

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Historical studies reveal that policing agents have undertaken a variety of cross-border police missions for many years (Deflem, 2002). For example, in the 19th century a number of European policing agencies undertook cross-border surveillance because of concerns about anarchist agitators and other political radicals. A notable example of this was the occasional surveillance by Prussian police of Karl Marx during the years he remained resident in London. The interests of public police agencies in cross-border co-operation in the control of political radicalism and ordinary law crime were primarily initiated in Europe, which eventually led to the establishment of Interpol before the Second World War. There are also many interesting examples of cross-border policing under private auspices and by municipal police forces that date back to the 19th century (Nadelmann, 1993). It has been established that modern policing has transgressed national boundaries from time to time almost from its inception. It is also generally agreed that in the postCold War era this type of practice became more significant and frequent (Sheptycki, 2000).
What groups did European police work against across borders in the 18th century?
A: unanswerable

Context and question: A number of technologies allow asphalt/bitumen to be mixed at much lower temperatures. These involve mixing with petroleum solvents to form "cutbacks" with reduced melting point, or mixtures with water to turn the asphalt/bitumen into an emulsion. Asphalt emulsions contain up to 70% asphalt/bitumen and typically less than 1.5% chemical additives. There are two main types of emulsions with different affinity for aggregates, cationic and anionic. Asphalt emulsions are used in a wide variety of applications. Chipseal involves spraying the road surface with asphalt emulsion followed by a layer of crushed rock, gravel or crushed slag. Slurry seal involves the creation of a mixture of asphalt emulsion and fine crushed aggregate that is spread on the surface of a road. Cold-mixed asphalt can also be made from asphalt emulsion to create pavements similar to hot-mixed asphalt, several inches in depth and asphalt emulsions are also blended into recycled hot-mix asphalt to create low-cost pavements.
How many types of chipseals with different affinities are there?
Answer: unanswerable

Question: Since annelids are soft-bodied, their fossils are rare mostly jaws and the mineralized tubes that some of the species secreted. Although some late Ediacaran fossils may represent annelids, the oldest known fossil that is identified with confidence comes from about 518 million years ago in the early Cambrian period. Fossils of most modern mobile polychaete groups appeared by the end of the Carboniferous, about 299 million years ago. Palaeontologists disagree about whether some body fossils from the mid Ordovician, about 472 to 461 million years ago, are the remains of oligochaetes, and the earliest indisputable fossils of the group appear in the Tertiary period, which began 65 million years ago.
Is there an answer to this question: What types of annelids disappeared 299 million years ago?

Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The city proper is home to less than one-thirteenth of the population of South Florida. Miami is the 42nd-most populous city in the United States. The Miami metropolitan area, which includes Miami-Dade, Broward and Palm Beach counties, had a combined population of more than 5.5 million people, ranked seventh largest in the United States, and is the largest metropolitan area in the Southeastern United States. As of 2008[update], the United Nations estimates that the Miami Urban Agglomeration is the 44th-largest in the world.
Along with Palm Beach and Miami-Dade, what county is part of the Miami-Dade metropolitan area?
A:
Broward