What flavour??

在学习这么多关于some 和any 的用法，唯一的一句礼貌用语中使用some的还被你给发现了，记住就是了，这个比较特殊。因为would you like和Do you want表达的比较礼貌，他们是可以等同的。遇到helping verb 过去式的侍候你就要考虑说话者的语气了，委婉礼貌的要尽量使用some。要是中国人出题考试，你要防止他的逻辑思维，很有可能是在迷惑你是用some 还是用any ，因为他就知知道，肯定用some 。否定和疑问用any。没有办法，谁叫他是出题者呢？

Yep. They're all the same.

I would say, generally, yes. There are differences in the usage. Some soup? - used in very colloquial situation, when both of you know what you're talking about. You can ask your friend this question. Would you like some soup? - polite question to anyone, it can be a person older than you are or younger. A waiter can ask you this question as a recommendation. Do you want some soup? - used between friends or family, you wouldn't say anything like this to a client :)