Can life subsist on anything else but water?
This may not completely answer your question, but provide some information.

Looking at this Wikipedia outline Non water solvents, other possible candidates are ammonia, hydrocarbons even hydrogen fluoride.  

Digging a little deeper, this abstract of the article: "Many chemistries could be used to build living systems." (Abstract only) describes the possibilities of ammonia and liquid nitrogen as being potential suitable solvents.  Page 678 onwards of the article: "Is there a common chemical model for life in the universe?" also describes other solvents such as ammonia (I should say that there quite a lot of Star Trek references in that paper).

I hope this goes part of the way to help.