Unfortunately I'm going to have to disagree with you when you said "Reducing stomach fat without exercise is absolutely impossible."
This is a major misconception. However, studies do show that reducing Intra-abdominal fat can be increased with aerobic activity more than just diet alone. BUT you can reduce intra-abdominal fat with just diet alone.
The photos you mentioned about the dumbbell needle aren't showing up unfortunately as well.
RE: Exercise abdominal fat in 2 exercises fast