A beer is 33cl (38cl during a campaign here..) 50cl for normal in town, and 1L at CeBIT, so, my half a beer means 0.33L / 2 = 16.6 cl beer... Dont make me drink more, I'll just end up asking Christian Ney for marriage!
NB; It is somehow light beer in München halle, your 5-10 liters isnt much of a problem, except having to piss all the time - the main problem is, price.... 10 liters of beer in there isnt exactly cheap.
EDIT;
George O/C
You do NOT get drunk in Glenfiddich, that is for pure pleasure!