Problem: LaserDisc:

The analog information encoded on LaserDiscs does not include any form of built-in checksum or error correction. Because of this, slight dust and scratches on the disc surface can result in read-errors which cause various video quality problems: glitches, streaks, bursts of static, or momentary picture interruptions. In contrast, the digital MPEG-2 format information used on DVDs has built-in error correction which ensures that the signal from a damaged disc will remain identical to that from a perfect disc right up until the point at which damage to the disc surface is so substantial that it prevents the laser from being able to identify usable data.

What video problems on a LaserDisc can be caused by dust or scratches?
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A: glitches, streaks, bursts of static, or momentary picture interruptions


Problem: Dutch language:

In Europe, Dutch is the majority language in the Netherlands (96%) and Belgium (59%) as well as a minority language in Germany and northern France's French Flanders, where it is in the ultimate stage of language death. Though Belgium as a whole is multilingual, the two regions into which the country is divided (Flanders, francophone Wallonia, bilingual Brussels and small 'facility' zones) are largely monolingual. The Netherlands and Belgium produce the vast majority of music, films, books and other media written or spoken in Dutch. Dutch is a monocentric language, with all speakers using the same standard form (authorized by the Dutch Language Union) based on a Dutch orthography employing the Latin alphabet when writing. In stark contrast to its written uniformity, Dutch lacks a prestige dialect and has a large dialectal continuum consisting of 28 main dialects, which can themselves be further divided into at least 600 distinguishable varieties.

What country in Europe has the highest percentage of Dutch speakers?
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A: the Netherlands


Problem: Database:

Having produced a conceptual data model that users are happy with, the next stage is to translate this into a schema that implements the relevant data structures within the database. This process is often called logical database design, and the output is a logical data model expressed in the form of a schema. Whereas the conceptual data model is (in theory at least) independent of the choice of database technology, the logical data model will be expressed in terms of a particular database model supported by the chosen DBMS. (The terms data model and database model are often used interchangeably, but in this article we use data model for the design of a specific database, and database model for the modelling notation used to express that design.)

What is the conceptual data model dependent on?
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A: unanswerable


Problem: Greece:

Since the Kallikratis programme reform entered into effect on 1 January 2011, Greece has consisted of thirteen regions subdivided into a total of 325 municipalities. The 54 old prefectures and prefecture-level administrations have been largely retained as sub-units of the regions. Seven decentralized administrations group one to three regions for administrative purposes on a regional basis. There is also one autonomous area, Mount Athos (Greek: Agio Oros, "Holy Mountain"), which borders the region of Central Macedonia.

What went into effect on January 1, 2011?
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A:
Kallikratis programme reform