Im thankful that I can usually answer those questions pretty well...but I avoid a lot of social scenarios which I REALLLY hate because I'm a really outgoing 18 year old dude. Try and practice responses to those questions...a so called "elevator speech" as a speech therapist I know said. Name, job/college, etc. i personally have mastered phrases used in social scenarios like "whats goin on" and that helps me a lot. practice leads to less anxiety which leads to less stuttering.