It happened sometimes, depending on the topic. I really liked in when that happened! Sometimes it was the other way around because all I could say was "yes", "no", "I don't know" or even "Um, what was the question again?". Most of the time we had "normal" conversations.

Maybe your T gives those short answers because he thinks its off topic and he wants you to go back to your own story?

I could be there's no click between you two. Then I'd suggest you'd find another T. That click is really important to make therapy work.