In the example you provided from the Huffington Post, “The USDA hotline has answers for your questions on food safety,” the use of “for” is correct in this context. While “to” is often used when talking about providing responses directly to questions, in some cases, “for” can be used to indicate that the answers are available in relation to the questions.
In this specific sentence, the USDA hotline is described as having answers that are related to or concerning your questions on food safety. The use of “for” here implies a broader sense of providing information or addressing questions in the context of the topic rather than directly responding to each individual question.
So, in summary, the Huffington Post example is grammatically correct, and the use of “for” in that context is appropriate to convey the idea that the answers are available in connection with the questions on food safety.
自分の考えと同じ内容が返ってきたので、多分これで間違いないと思います。ChatGPTはときどきトンデモないデタラメを平気な顔をして言ってくるので、判断するのはやはり自分でないといけません。鵜呑みにはできません。
Youtube で”answers for questions”を検索すると、
https://www.youtube.com/results?search_query=%22answers+for+questions%22
多数ヒットします。とくに、学校の勉強で「問題に対する解答」というときに”Answers for questions”という表現がよく使われるようです。