C#, C++ - use them a lot, but primarily for schoolwork. Built one kind of crappy Windows app in C#.
Java - Forgotten what I learned of it during the one semester I had of it.
VB - know it, don't like it.
Perl - used to know it barely kind of, at least enough to make really basic CGI scripts years ago.
Python - almost made it through the Coursera python games course and some other tutorials, can't say i've found a niche for it yet that hasn't been already filled by more familiar languages but i'm still willing to be converted. Although I still think significant whitespace is the Devil's palimpsest.
I mean, I've probably used 15-20 actual languages professionally (CSS and HTML and the like don't count), and some of those I still list on my resume because I could retrain my brain very quickly. But stuff I used once in a class, or took a MOOC on two years ago, or whatever, those aren't "known" in any meaningful way. Recognizance isn't knowing, at least to me.
But I think two semesters' worth of projects in C++,C#,VB and Java count as at least more than 'recognizance.' At least for the cost of my student loans, I hope so.