What are the best interview questions you know?

Context - I was reading some of the comments in the "what happens when you type google.com into the address bar and press enter' article and wondered what are considered good questions. Also, I would like to know if the following sequence of interview questions would be considered "bad" by most of you (for an embedded software position):

<Interviewer>: "It says on your CV that you know VB .Net, could you tell me what some of the primitive data types are in that language?"

<Inteviewee>: "What do you mean?"

<Interviewer>: "You know, storage types ... like 'Integer'."

<Interviewee>: "Um...?..."

<Interviewer>: "Thats OK ... Could you tell me what programming language are you the most comfortable with?"

<Interviewee>: "Assembly"

<Interviewer>: (surprised) "Really? That's great! Of the different architectures, what processor's assembly are you the most familiar with?"

<Inteviewee>: "Umm ... the 68HC11."

<Inteviewer>: "Cool ... I actually built a 68HC11 board back in school. Could you describe some of the addressing modes that are available on that?"

<Interviewee>: ...?...

FWIW, these are questions that I asked. Just wondering if there was a better way to go about it.