Here's a starting point:
http://wikitravel.org/en/Russia
I would advise cosmetic surgery and bleaching your skin until you look Russian enough to avoid random beatings, then bringing along a spare liver because you'll have to replace after a couple of weeks of Russian-style drinking.

Acclimatize yourself with a visit to Shashlik (Far East Shopping Centre, Orchard Rd), it's the only place in Sing I know with food that is worse than the real thing.