Who had the mustache, Oliver or Wilbur Wright?
Avoid currency controls is the correct answer. By moving money around you can do the other three. Currency controls limit how much money you move around.
It sounds like your smoke detector is NOT hooked up to the AC power lines, and the battery is going dead, as others have suggested. You can check that by turning off the main power switch. If you had the ceiling finished by someone else, maybe they will remember where the smoke detector is located. You could just put up with the beeping until it stops - after the battery has completely died - which is what I would do. Or you could buy a cheap stethoscope and go around your basement listening to the ceiling in order to locate it.
