Can exercise cure bowed legs?

Yes, But Its depends on Severity. Yoga and Pilates ,Massage therapy and Also Leg strenghtening

exercises e.g  One leg strengthening exercise can be performed by lying flat on an exercise bench. Place a10-lb. weight between your feet. Bend at the knees, bringing your feet back until the weight hits you in the buttocks. Fully extend your legs and repeat. As you improve, increase the size of the weight you are using.Thank You

No, you must figured out if there a pathological bow or not, males have litle genuvarus (< >) and females little genuvalgus (><).

Usually pathological bowed legs  are associated with another diseases, and it can predict faster development of arthrosis.

In podiatry this is referred to as genu varum which is the bowed position of the knees during infantile stages till adulthood. It is due to the process of developmental unwinding, where the soft tissue surrounding the knee may be held in this position and infant/child may not outgrow it.

In addition some people may also possess the appearance of tibial torsion adding to the bowed leg appearance. I think exercise may to some degree improve on the appearance of a "bow-leggedness"  if the soft-tissue surrounding the knee is able to be manipulated and mobilized. It may also depend on the level of flexibility one possesses or the age of the individual. So, for instance in children bow-leg may be fixed if observed early in the pediatric patient. However if the individual's bow leg appearance is rigid and surrounding tendons and ligaments are calcified and ossues-like then it may not be reducible. Hence, the latter may require some form of surgical intervention.

Yes why not, because I do not have kidney disease, liver and I was in good health with no disease.

initial stage we can modify once it reach beyond the limitation surgical is best...any OA OR OVER WEIGHT...

YES WHEN PRACTISED WITH GOOD VITAMIN SUPPLEMENT TAKING,AND AT EARLY STAGE

during first year after delivery we can try to cure

No, they can not CURE it but exercises can sure help manage the condition.