What 11 12 13 14 15 16 17 18 19 20 magpies mean you know it goes up to 20 but can not remember what it means?

The traditional rhyme about magpies is a way of determining luck based on the number of magpies seen. Generally, one magpie is considered bad luck, while two is good, and the meanings continue to alternate. By the time you reach 20 magpies, the meanings can vary by interpretation, but some sources suggest that 20 magpies could symbolize a very high degree of luck or fortune. However, the specifics can differ based on local folklore.