Click here to see the meaning of the Number 20/2 In Tarot The Soul Urge Number is who you really are. The Number 2 represents Union - the Father-Mother Principle, and so cooperation and association.
Puberty is started by hormones, which are chemicals that tell parts of the body to do things. Today, on average, girls start puberty at age 10 or 11, and boys at age 11 or 12. However, people all over the world start puberty at different ages.
You officially finish puberty when your epiphyses fuse. That's the part of your bones that undergo growth spurts. That's the medical definition but not so helpful for you! Most males start puberty between 15-17 and can finish from 18-21.