Memory Alpha lists all the known Rules of Acquisition within the various TV series, out of a total number of 285, and includes references to which episodes they were stated in. It's never been stated what the missing ones are, nor is there a complete list of all of them - Memory Alpha's list is the most complete there is that can be definitively stated as canon.1
There's also a set of "rules" listed that were either made up, or not known to be among the Rules of Acquisition - they're listed under "Unofficial Rules" on that page.
Unfortunately for the second part of the question, rules 2, 4, and 5 have never been defined.
1However, @Thaddeus's answer lists the rules as stated out-of-universe by one of the series producers