five finger will change your life

A teacher gives the following exercise to her students: Imagine you are a member of a nomadic community that shifts residence every 3 months. How would this change your life?

In how many ways five different rings can be worn in four fingers with at least one ring in each finger?

The avearge length of any four fingers of my left hand is 600 mm.Then the aveage length of all the five fingers of my left hand is:

Why does the skin of your finger shrink when you keep your hand in water (soap solution) for a long time?

Choose a quiet corner and keep still physically and mentally for about five minutes. Do you feel any change in your state of mind?