Problem: The city's FM radio band features RTE Radio 1, RTE 2fm, RTE lyric fm, RTE Raidio na Gaeltachta, Today FM, 4fm, Newstalk and the religious station Spirit Radio. There are also local stations such as Cork's 96FM, Cork's Red FM, C103, CUH 102.0FM, UCC 98.3FM (formerly Cork Campus Radio 97.4fm) and Christian radio station Life 93.1FM. Cork also has a temporary licensed city-wide community station 'Cork FM Community Radio' on 100.5FM, which is currently on-air on Saturdays and Sundays only. Cork has also been home to pirate radio stations, including South Coast Radio and ERI in the 1980s. Today some small pirates stations remain. A number of neighbouring counties radio stations can be heard in parts of Cork City including Radio Kerry at 97.0 and WLR FM on 95.1.
What Radio station only airs on Sundays?
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Answer: unanswerable

Problem: The dollar was first based on the value and look of the Spanish dollar, used widely in Spanish America from the 16th to the 19th centuries. The first dollar coins issued by the United States Mint (founded 1792) were similar in size and composition to the Spanish dollar, minted in Mexico and Peru. The Spanish, U.S. silver dollars, and later, Mexican silver pesos circulated side by side in the United States, and the Spanish dollar and Mexican peso remained legal tender until the Coinage Act of 1857. The coinage of various English colonies also circulated. The lion dollar was popular in the Dutch New Netherland Colony (New York), but the lion dollar also circulated throughout the English colonies during the 17th century and early 18th century. Examples circulating in the colonies were usually worn so that the design was not fully distinguishable, thus they were sometimes referred to as "dog dollars".
When were the Spanish dollar and Mexican peso no longer accepted as legal tender?
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Answer: 1857

Problem: The modern concept of an abstract group developed out of several fields of mathematics. The original motivation for group theory was the quest for solutions of polynomial equations of degree higher than 4. The 19th-century French mathematician Evariste Galois, extending prior work of Paolo Ruffini and Joseph-Louis Lagrange, gave a criterion for the solvability of a particular polynomial equation in terms of the symmetry group of its roots (solutions). The elements of such a Galois group correspond to certain permutations of the roots. At first, Galois' ideas were rejected by his contemporaries, and published only posthumously. More general permutation groups were investigated in particular by Augustin Louis Cauchy. Arthur Cayley's On the theory of groups, as depending on the symbolic equation n = 1 (1854) gives the first abstract definition of a finite group.
Who developed a theory giving the first abstract definition of a finite group?
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Answer:
Arthur Cayley