How long would it take to lose 20 pounds and what would you do to lose it?

it would take about 2 months and what you would have to do is watch what you eat and how much of it you eat. You would also have to exersize, like walk 2-3 miles a day and do as many crunches as you can until u are so worn out. By the crunches it would lose your stomack fat if you had that and by walking that would lose your waist size and your legs. Also eat only about 1200 calories in a day and keep it pretty healthy.