In business for more than 60 years, American Dairy Queen Corporation, a part of Berkshire Hathaway Inc., is a chain of restaurants across the globe. Located in Cumberland, Md., the restaurant serve a variety of foods and treats, including cheeseburger, chicken sandwich, hot dog, chicken wrap, regular French fries, onion rings and side salad. Additionally, it serves a variety of soft serves, including sundaes, waffle cones, banana split, and pies, birthday cakes and beverages, including smoothies, shakes, fruit juice and coffee. American Dairy Queen Corporation offers kids meals, gift cards and arranges for birthdays and parties.