common knowledge

Niagara, Hanukkah, they, and separated are all misspelled. Ron’s is missing the apostrophe. Hanukkiah should also be accepted as an answer. Tape player, cassette player, cassette tape player, or record player should all be acceptable answers, whereas a CD player does not perform a similar function to that of a tape recorder, the answer given. In some contexts fishes can be the plural of fish. However, it is hard to think of any attempt at an answer which would not start with “fish”, so how can anyone actually get this one wrong, unless they leave it blank?