Problem: Antenna (radio):

The words antenna (plural: antennas in US English, although both "antennas" and "antennae" are used in International English) and aerial are used interchangeably. Occasionally the term "aerial" is used to mean a wire antenna. However, note the important international technical journal, the IEEE Transactions on Antennas and Propagation. In the United Kingdom and other areas where British English is used, the term aerial is sometimes used although 'antenna' has been universal in professional use for many years.

What is an acceptable synonym for antenna?
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A: aerial


Problem: Mosaic:

There are very few existing mosaics from the Komnenian period but this paucity must be due to accidents of survival and gives a misleading impression. The only surviving 12th-century mosaic work in Constantinople is a panel in Hagia Sophia depicting Emperor John II and Empress Eirene with the Theotokos (1122–34). The empress with her long braided hair and rosy cheeks is especially capturing. It must be a lifelike portrayal because Eirene was really a redhead as her original Hungarian name, Piroska shows. The adjacent portrait of Emperor Alexios I Komnenos on a pier (from 1122) is similarly personal. The imperial mausoleum of the Komnenos dynasty, the Pantokrator Monastery was certainly decorated with great mosaics but these were later destroyed. The lack of Komnenian mosaics outside the capital is even more apparent. There is only a "Communion of the Apostles" in the apse of the cathedral of Serres.

Where is the only existing 12th century mosaic in Constantinople?
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A: Hagia Sophia


Problem: Liberia:

Liberia's highest judicial authority is the Supreme Court, made up of five members and headed by the Chief Justice of Liberia. Members are nominated to the court by the president and are confirmed by the Senate, serving until the age of 70. The judiciary is further divided into circuit and speciality courts, magistrate courts and justices of the peace. The judicial system is a blend of common law, based on Anglo-American law, and customary law. An informal system of traditional courts still exists within the rural areas of the country, with trial by ordeal remaining common despite being officially outlawed.

How many members are in the Supreme court?
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A: five


Problem: Group (mathematics):

A group is called finite if it has a finite number of elements. The number of elements is called the order of the group. An important class is the symmetric groups SN, the groups of permutations of N letters. For example, the symmetric group on 3 letters S3 is the group consisting of all possible orderings of the three letters ABC, i.e. contains the elements ABC, ACB, ..., up to CBA, in total 6 (or 3 factorial) elements. This class is fundamental insofar as any finite group can be expressed as a subgroup of a symmetric group SN for a suitable integer N (Cayley's theorem). Parallel to the group of symmetries of the square above, S3 can also be interpreted as the group of symmetries of an equilateral triangle.

What is called the order of the group?
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A:
unanswerable