This question has been irking me for a while and I cannot seem to find any answer. Take something simple such as:
Question:"Did you not enjoy eating at the restaurant?"
Response: "No."
Does this mean:
"No, I did enjoy eating at the restaurant."
or
"No, I did not enjoy eating at the restaurant."
I've heard both used in the above context and I honestly could see how both could be used as a response depending on the previous context and other variables like the speaker's tone.