Interesting test. It kept me up until 1:30am on Friday night and I'm not ashamed to say I didn't solve it prior to looking up the answer.

Without "giving anything away" to anyone else I was able to determine everything except where the Dane, Swede or German lived, who had cats, who drank water, who smoked the Pall Malls and the Bluemaster. Especially with the cats, there seemed to be no relation I could pin down whatsoever. It was a fun challenge anyway.

Chris L