1) Make me a program that counts how many times the mouse has been clicked.


2) Make me a program that counts how many times the mouse has been clicked 
in the upper half of the screen.



3) Make me a program that counts how many times the mouse has been clicked
in the upper left hand corner of the screen.





4) Make me a program that counts how many times the mouse has been clicked
in a square in the middle of the screen.





5) Make me a program that tells how far the mouse has moved between the
most recent click and the one before.  This might be hard.