Lunges:
These target abdominal muscles, legs, thighs and hamstrings and doing them with weights can have added effect.
Hold dumbbellsin each hand and then bend each leg one after the other.
Do 3 sets of 15 reps with 30-60 seconds rest after each step.
Push-ups:
This classic exercise integrates your core, your arms and shoulders and helps strengthen them simultaneously. Here you use your own bodyweight to perform the exercise. Make sure you do at least 3 sets of 10-15 reps each and a 10-second break after each set. You can increase the number as you get better.
