OK, the wording of ...on a medium customarily used for software interchange... suggests a physical item with code on that, but s/on/in/ and you get the common understanding - the Internet is widely used for software interchange, and this is the first time that I have heard anyone claim that posting code on the web isn't enough.<ObAOL>Me Too!</ObAOL>
BTW I had two wrong. Mostly I guessed based on what I believed the intent of the license to be. The fact I got most of them right indicates to me that the wording is pretty good.
Number 5 was a lawyer's dream. Totally impenetrable IMO.
Number 6: I guess the actual requirement is that you either charge the cost of distribution or give source free to anyone who buys the binary?