I HATE when someone I just met asks me how old I am. What questions do you hate or consider to be rude when asked by strangers?

I feel like there are sooo many more interesting things you can ask someone to get an idea about who they are. You can tell roughly how old someone is by looking at them. I don't have a problem with telling people my age, but I don't like to tell someone I have just met because I feel they are putting me in a category and making judgements about me based on the year I was born. Most of these judgements are less accurate than their first impression.