1. CE, CLR 2. CG, CB Steering without rudder. It may be helpful to note that in a dingy the skipper always sits facing the sail, and so always has the right hand in front of the boat when sailing on starboard. A dinghy's skipper's left hand will always be toward the front of the boat on port. This is a technical definition and wind direction is irrelevant for the sake of the rules of the road.
Wind direction is again irrelevant.
Starboard over Port 2. Leeward over Windward 1. A vessel on starboard tack has the right of way over vessels on port tack. If two vessels are on the same tack, the leeward vessel has the right of way.