Question #1: No! The variables in math class are not the same as the variables in computor programming. In math class, you try and solve for a variable. However, in computor programming variables represent a ceratin value that can change.
Question #2: A variable affect all sprites or only that specific sprite.
Question #3: A variable can only store one value at a time.
Question #4: This will not work because value one will set to value two. So when Value two switches to value 1, it doesn't change because value 1 already switched to value two.
Question #5: When the sprite is clicked, the temporary variable will allow value #1 to switch to Value #2 and value #2 to value #1.
Click here for problem #1
Click here for problem #2
Click here for problem #3