How is the return value of a method determined?

2 What is the syntax used to return a value within a method?

3 "Who" determines the return value of a method?

4 "To whom" is the return value given , or said another way - "who" specifically receives the return value?

5 What can the receiver do with the return value?

6 Assuming a method was written to simply print the words "Hello World" when invoked, and do nothing else, why is it incorrect to say that the return value of this function is "Hello World"?

7 What is the return value of the above function described in question 6?