How much do you drink to get drunk on a 8 percent alcohol?

Different people have different levels of tolerance. why in the world do you want to get drunk? It will hurt you!

Most states consider you de jure intoxicated when your blood alcohol content reaches 0.08%. The human body contains about 5 liters of blood, so 50 milliliters... about one and two-thirds fluid ounces... of 8% alcohol by volume would contain sufficient alcohol to theoretically reach that limit.

In practice, it's quite a bit more complicated than that, since not all the alcohol goes directly into the blood and it starts getting broken down by the liver as soon as it gets there. (This is part of the reason people have different tolerance levels.)