People just can't live together without telling stories. We tell stories that are funny, ironic, insightful, or just simply pleasing to the tongue and ear. Stories just seem to happen. When a story happens with the force of universality, it finds its way into that pantheon of tales that is the common denominator of cultural exchange. Here are 20 such tales, collected from Mexico, China, Korea, Fiji, Tibet, Africa, from America's native peoples, and...