I weigh around 120 lbs, but i want to lose couple of inches on my waist and butt. Please help?

Question

I have tried walking on threadmill for 20-30 mins a day but it hasnt been of much help

Answer 1

Sit-ups, crunches, lunges, and push ups, try doing all those in intervals. Just make sure your posture is correct in doing these or you'll do more damage than good. Also there are some fitness magazines that have GREAT pointers so you can switch it up if you get bored.

Answer 2

find daily calorie intake calculator on the net, enter all your stats and it will tell you how many calories you need a day to maintain, take off 300-400cal off that number and thats how much you need to lose.
eat 5-6 small meals a day (eat every 2-3 hours - it optimizes your metabolism)
5-8 servings of fruit and veggies a day
8 glasses of water
have complex carbs for breakfast - they give you energy
have protein (lean meat, legumes etc) for dinner - repairs muscle
cardio exercise 4-6 times a week for 30-50min (ideally 45min because the first 20-30min body burns carbs and only then starts burning fat), light weight training (more muscle=faster metabolism)
dont consume foods that are made of white flour (white bread, cakes, pasta etc.), sugar loaded foods (cookies, icecream, candy etc) and nothing fried, oily.
ofcourse you can spoil yourself once in a while with a little treat:)