I would say it's more sarcastic if the person asked what to the answerer is a question with an obvious answer. Otherwise, it might simply be taken as a very firm answer rather than as sarcasm.Yes, it's humorous (some people might only call it 'slightly humorous'), but it's also sarcastic. Not everyone appreciates that kind of 'snappy' answer to an innocent question, so I'd recommend you use it only with people you know very well who appreciate sarcasm.
My advice is to use this phrase with your friends who have a good sense of humor. If you say this to me, I'll probably laugh. If you say it to me every time I ask you a question, I'll probably get annoyed.Thank you all my teachers. So it's sarcastic. I'd better not used it.
Hello hmk and welcome to the forum!I realize this thread is a bit old but I wanted to point out that saying "Do chickens have lips?" in response to a question is not merely sarcastic but is ironically sarcastic. It should be said with gusto and is very positive. For example, you ask someone who you know loves ice cream if he would like some ice cream and he replies, "Do chickens have lips?" or in other words, "I most definitely do!"
It most assuredly does not mean "no".