What will happen to my body if I do 100 push-ups and 100 sit-ups daily for a month?

Assuming you're beginning from no exercise, you're bound to notice some changes. Although pushups are a strength exercise, doing 100-reps of anything lends itself more to endurance, than to strength or muscle gain.

Remember that muscles grow as you rest, and not as you train. By pushing through the discomfort, you are actually training your body to foster greater endurance. This means that if you're pushing yourself to failure, you'll notice the necessary gaps between sets will decrease (along with the initial soreness you experience at the beginning of the month) until you are capable of doing them in 1-2 sets.

I'd follow the directions of the other Quorans and consider more effective exercises. Further, I'd recommend picking more exercises to get a whole-body workout (every second day) or exercising a different body part each day over 6 days:

Monday - Chest
Tuesday - Back
Wednesday - Core
Thursday - Shoulders
Friday - Legs
Saturday - Arms

After 6 days, lather, rinse and repeat. You'll be: working smarter, less sore, and more likely to maintain your routine at the end of the month by avoiding the boom and bust nature of your intended approach.
What are the real benefits of resistance band workouts? Can I build muscle mass by using the bands?

Resistance bands have one major advantage few other training apparatus have, you can create a horizontal line of resistance from a standing position. They are also fairly safe since the resistance increases as you put more tension on the band so it is fairly self regulating as long as you don't push yourself unreasonably.No matter your chosen tools for

What is the difference between before marriage and after marriage?

There are many differences before marriage and after marriage for wife and husband as well (http://bit.ly/2qaXcFn). It is a totally new journey for them and they go through many changes in their life.Before marriage you are not much accountable for

What kind of push-ups reccomend to lose weight fast?

Thanks for the A2A Peter VoUnfortunately its not about the push ups but the balance between your intake and expenditure for weight loss.This is what I have as my summary and recommendations after all these yearsBe it Keto, Intermittent fasting, Atkins, OMAD and excluding the hormonal stuff that each diet has. The