It means that even it everyone is doing something wrong, it is not right. It is referring to peer pressure, don't do something just because everyone else it doing it.
Your answer would be true
The words "knot" and "plot" are examples of the poetic device, Consonance. Consonance is a figure of speech that uses repetition of consonant sounds within the sentence, phrase or line. In this case, the consonant sounds that are repeated in these two words are the sounds created by "-ot".
The answer would be prudent
