It varies a lot. If i go to the pub after work, it's somewhere around 8-9 pints, because i don't eat much during working days. If it's at the weekend, and i'm drinking with my lady friend or my buddies, it can range from 10-15 beers to be in a happy drunk place.
Then you can throw in spirits, in which case it's about 4/5 doubles and i'm drunk. I don't do that, that often though. Fucking double Aftershock mix (red + blue) is £3.80... fucking extortionate bastards.
As of right now, im supping on a Stella Artois. Enjoying the day.