1. Food intake varies for me, but generally I don’t eat until noon, or sometimes even until 6pm. I generally don’t force this; I’m hungry right now, I’ll often eat right now.
2. (1) has been the case for years, both when exercising regularly and when not. Right now I happen to be exercising regularly. On Saturday I woke up feeling good, so I drank some water and got on the rowing machine to do a half marathon. That was with no food since the evening before, and no water during — it took 1:45, which is a moderate pace for me. After that I still wasn’t very hungry.