Why not try completing 100 press ups a day for the next 30 days. You burn on average 1 calorie per push up, depending on your weight and how vigorously you’re exercising, meaning when you perform 100 push ups, you can expect to burn about 100 calories. 100 calories * 30 days = 3,000 calories (nearly a pound of fat).
Or even take it one further and do it everyday for a year. 100 calories * 365 day = 36,500 calories (more than 10 pounds of fat).
Do you want to lose 10 pounds of fat by this time next year?