Weighhht!!!!! l0 easy points!?

uh i know that it isnt NOT impossible to lose 5 pounds in one day my cousin did it and i live with her! so she doesnt throw up and crap like that but anyways if i wear sauna and sweatpants and a sweatshirt on the tredmill and eat salad and drink water for 16 days how much weight will i lose if im 198 pounds. and go on the temill for 2 hours.