Fasting, excercise and diet
You can't. It takes longer than a day to lose weight from your thighs (or anywhere, for that matter).
Dont eat
yes
That's kind of not how it works. You can't lose weight by "eating ice all day."
you'd lose no weight.
Yes
if run 2km per day how much weight do you lose in a day?
You cannot lose 20 pounds of body weight in one day.
You cannot lose 7 pounds of body weight each day.
You can lose weight by drinking water each day. You should drink half of your body weight in ounces every day. If you drink 130 ounces per day, you will stay hydrated.
no
It won't help you lose weight, only to make your diet healthier. Exercise does that. Raw celery is negative calories and can help you lose weight.