Take a Difficult Test!
There is a silly question below. The answer will consist of exactly six characters, including both numbers and letters. For example, if the question is: "Write the numeral nine followed by the name of the Lone Star State", you would write "9Texas" in the answer box.
Sorry about this foolishness, but it's necessary to keep "spambots" from registering automatically.
Type the numeral that stands for "nothing" followed by a standard unit of measurement for milk that equals two pints or a quarter of a gallon (also the first five letters of a US coin that is one-fourth of a dollar)