Depends on how fast he runs in a sitting. If he runs slow during the 20 minutes he isn't getting much done :D.
Listening is an important skill for a leader because a leader has to know how to understand the needs and wants of the group. If a leader doesn’t listen then that leader is failing to represent the group.
It is true because if you train to hard you are gonna get overload syndrome.
Setting limits helps you make responsible decisions because when you set limits you know how far you should or shouldn’t go.
Hope you get this right and make a 100