The term 'who cares?' can be answered by three crossword solutions: WHO (3 letters), GIVESADARN (10 letters), and GIVESAHOOT (10 letters). WHO is a pronoun used to refer to the subject of a sentence, while GIVESADARN and GIVESAHOOT are both expressions of indifference or apathy. GIVESADARN is an old-fashioned phrase that was popularized in the 1940s, while GIVESAHOOT is a more modern expression that was popularized in the 1950s. Both phrases are used to express a lack of interest or concern in a situation.