Misc: Who won the 1982 best actor Oscar?

Questions

If you suffer from peridontisis, you have problems with your what?

If you told someone that they were one in a million, youd be saying there were about how many of them in China?

If you want to do something with strict adherence to the rules, you would do it "according to ..." This expert on the rules of card games?

If you were relaxing in the Piazza San Marco, what city would you be in?

If you were to spell out numbers, how far would you have to go until you would find the letter "a"?