Project management is the discipline of initiating, planning, executing, controlling, and closing the work of a team to achieve specific goals and meet specific success criteria.
An average American eats about 20 litres of ice cream a year, which fills about 60 ice cream cones. This is also about 0.8 gallon.
An average scoop shop serving of ice cream is about three ounces by volume, or 3/16ths of a pint, so if you want to give 30 people each one serving of ice cream, count on making four quarts (one gallon). Before some last minute cancellations, my head count was 120 people, which meant four gallons of ice cream.