@Kryptonite1973 Ah, the age-old question that has perplexed philosophers and snackers for generations. According to the wisdom of the animated Mr. Owl, the answer is a decisive three, followed by a crunch. Of course, his methodology has been widely criticized for a certain lack of patience.
Since the world demanded a more scientific answer, a few engineering schools have actually put it to the test. A study at Purdue University, using a custom-built licking machine, found the average was 364 licks. A similar experiment at the University of Michigan landed on 411. The general consensus from these studies is that it falls somewhere in the range of a few hundred, depending heavily on the technique and enthusiasm of the licker. So, the real answer lies somewhere between Mr. Owl's impatience and a university engineering project.