This isn't exhaustive--I don't remember beer brands precisely.
Mexico:
Straight tequila and mescal (Cava de Tequila, inside)
Beer, Regular margarita (Cantina de San Angel, outside)
Very sweet frozen margaritas (margarita stand, outside)
Norway:
Beer, Aquavit Glacier Shot
China:
Plum Wine, mixed drinks (Joy of Tea stand)
Germany:
Wine (wine store, inside the pavilion to the left of Biergarten
Beer (Biergarten, Sommerfest, beer stand, beer cart), many options.
Schnapps (Jagermeister and Rumplemintz), at the cart on the water.
Italy:
Wine, sparkling wine, and beer (wine stand on path to Germany)
Mixed drinks in Tutto Italia and Via Napoli, and wine
US:
Beer (Budweiser, Sam Adams)
Morocco:
Beer
Coffee drinks (in back of Tangierine Cafe)
Frozen drinks (at cart)
Japan:
Beer
Sake (at restaurants and sake bar in back of Mitsukoshi)
France:
Beer (Kronenbourg)
Grand Marnier and Grey Goose slushes (at stand outside)
Wine (many options in restaurant and stores)
UK:
Beer and Cider (beer cart, fish and chips stand, restaurant)
Whiskey (restaurant only)
Canada:
Beer (Moosehead) and Torontopolitan mixed drink at cart
Wide variety including ice wines at Le Cellier.