Problem: Which common fish belongs to the family gadidae?
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A: cod

Problem: "What was the preoccupation of John Nash Jr, the subject of the 2001 film ""A Beautiful Mind"" starring Russell Crowe?"
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A: economics

Problem: In Gilbert and Sullivan's opera Iolanthe, a British institution is described in song as 'throughout the war did nothing in particular and did it very well'. What was the institution?
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A: house of peers

Problem: A 'Knab' or 'Knot' is the collective noun for which amphibious creatures?
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A:
toads