The phrase "short answers" can be replaced with several synonyms, each with a slightly different shade of meaning. For example, "brief responses" carries a more formal, business-like tone, while "concise replies" suggests a tighter focus on specific details. "Terse retorts" might emphasize a curt or impatient attitude, while "succinct rejoinders" could imply a more thoughtful reply that still manages to be efficiently communicated. "Laconic replies" leans more literary, perhaps hinting at a reserved or even mysterious personality. Regardless of which synonym is used, the overall meaning remains the same: responses that are brief but to the point.