Write your solutions to these exercises in a file called exercises.txt to be handed in with the rest of your directory. You should elaborate on your answers to convey to the graders how well you understand and can differentiate these concepts. Describe the messages to which these things, as objects, need to respond. All you are doing is switching the roles of procedures and data. All you are doing with this object-oriented stuff is confusing everybody.
Procedures are procedures and data is data.
Do not confuse the two.