it really depends on a lot of factors...mood, mindset, how much is in my tummy, etc...
last new years eve, i was fighting with my ex...just wanted to forget everything - drank a fifth of malibu rum, 6 of corona, 6 of beast and 10 glasses of punch. i made it to the ball dropping, then passed out...it was a rough night, with a rough cause
last thursday, 12 beers, 1/3 bottle of malibu, 1/3 bottle of godiva dark chocolate liqour...woke up at 4 am having to piss so bad, and i sleep naked, and ppl were still up...its being refered to in my suite as naked thursday
but id say on average 4-6 to feel it, 10-12 to be drunk, usually with some liqour...depends really