Why do people as these question?

I'm tiring hearing these questions
1.How long have you been here?
2.What country you came from?
3.Can you teach me math?
4.You all look alike.
5.Do you eat cat or dogs?
6.Do you know karate?
7.why do the Chinese take out people don't eat what they sell?
8. Do you only date Asian guys?
9. What kind of Chinese tea will make you lose weight?
10. What's your real name?

My answer to these questions.
1. I'm American
2. I was born here.
3. I'm not good in math. Why you ask cause I'm Asians.
4. No we don't.
5. Hell no I don't eat cat or dog. Are you fu$king crazy!
6. Maybe
7. Cause it's fast food. I really don't know.
8. No i don't date only Asian guys.
9. I recommend the tea. You will have the worst stomach ache and you being on the damn shitter all day long.
10. None of your business!!!