1/12 Plank Push Up
Plank push ups are great if you want ripped arms. Start in the plank position, which is just like a push up position, except you balance on your forearms instead of your palms. Make sure your back forms a straight line, and your butt isn't too high in the air. Push on your forearms until your arms are straight. Hold it for a second, and go back to plank position. Do three sets of 10, with a minute of rest in between each set.