28. The perfect push-up?

No, the perfect push-up isn't at Victoria's Secret, it's at the gym (or even at home)! Did you know that a push-up, done correctly, is the perfect exercise? It's good cardio (if you do enough of them together), it's great for strengthening your core, and it even helps build lean muscle in all of your other muscle groups. Marvelous! How many push-ups can you do correctly?