Actually, that's standard protocol at a lot of places and doesn't reflect how your interview is going. We specifically make a note of what candidates ask, because sometimes it can demonstrate real interest and passion.
I did a bunch of interviews at my previous job, and now am tasked with doing pretty much all of the phone screens as we grow.
I note down every single question the candidate asks me. I try to jot down something about the context, and I also try to pick up on their tone of voice whenever possible.
By far the best interviews are those where we have had some time left over and ended up chatting about things that the candidate finds interesting. On those times I have learned two things, both of which have been valuable. One - what really makes the candidate tick. Job experience is one thing, knowledge of what they can not help learning about more is another. And two - every time the candidate is passionate about something I don't know about, I learn new stuff.
And for some reason, I actually like doing interviews. Strange.
C: "This company pays currency in exchange for the performance of services."
But when the interview round is supposed to have two technical questions then it becomes disheartening.
I have a list of standard questions I now ask.