These mini-challenges you can do at your home and you don’t need any kind of equipment, just a little bit motivation. I have been combining these and attempting to do them all the days in one setting. The Wall Sits are the biggest obstacle.
Someone needs a fact checker. This math is so wrong. 1000 jumping jacks is only 500 calories burnt. That's only the calories of one pound of fat, 3500 calories. To burn 1 pound do 7000 jumping jacks. That sounds a bit more reasonable, eh?