The Producers is a musical adapted by Mel Brooks and Thomas Meehan from Brooks' 1968 film of the same name, with lyrics written by Brooks and music composed by Brooks and arranged by Glen Kelly and Doug Besterman.
8 ounces = 1 cup 4 ounces = 1/2 cup So yes, 12 ounces is equal to 1 1/2 cups.
16 ounces is 2 cups which is 1 pint. 32 ounces is 4 cups which is 2 pints which is 1 quart. 128 ounces is 16 cups which is 8 pints which is 4 quarts which is 1 gallon. Strangely, it's only the liquid measures that give me trouble.