20 pushups per night is probably not enough to grow "big arms", no matter how long you continue the routine. Progressive weight training is a better approach. That means lifting heavy weights and making the weights heavier over time. Don't forget proper nutrition and plenty of rest.
I can make my arms bigger by doing pushups everyday.by getting them erected
No, I think it will still be mostly biceps.
Do pushups!
i would personally do pushups, or handstand pushups. Handstand pushups are where you go on your hands, lean you back against a wall and bend your arms at least 90 degrees. It takes time to be able to build up the strength in your arms to do handstand pushups correctly so it you are a beginner, then stick with pushups for now.
They exercise your arms and chest a bit, and they burn a tiny amount of calories.
Pushups do work. They help build up your upper body strength like your arms, pecs, and abs. There are several ways you can do pushups, too.
Well, It would if you do pushups your musscles will be as hard as a rock.
Well, its hard to gain weight on your arms specifically, however, you can add mass to them by building the arm muscle (with pushups, etc.)
Your arms hurt because you use arm muscles. When you use a muscle, after a while it starts hurting. For example, after a long walk, your leg muscles hurt.
Pushups can build up muscles on your arms but not as much as you want them to. Pushups mainly workout upper back and chest muscles. Best arm workouts are straight bar curls. Perfect technique is also the key in building muscles.
Arm exercises to build muscle mass are very simple and don't have to be done in a gym. A simple set of barbels can be used for doing curls and lifting. Pushups are also a good exercise for increasing muscle mass in your arms.
Really you just hang in the position for twenty seconds and lock your arms... pushups and pullups will help :)