As a student pilot you have to be authorised by an instructor to fly as pilot in command. So ask the instructor who is authorising you what you are allowed to do and be sure to comply with it. Suggest you study the Civil Aviation Regulations, it's all in there.
First scenario can be done if you have passed a GFPT.
Second scenario, only if your dad is an instructor and the flight is conducted through a flying school's Air Operators Certificate which employs him.
Third scenario, the pilot in command must occupy a control seat. This would normally be the left as a student but again, check with your authorising instructor.