IS IT POSSIBLE TO RENT A CAR IN PARIS THAN GO TO BOSNIA AND COME BACK TO PARIS???????????

The short answer is probably yes BUT you need to check with the car rental agency to see if that is possible. It is not unusual for a rental company to prohibit a car being driven in certain countries for a variety of reason, some related to insurance. Please, use lower case, easier to read and more polite.

Please stop with the all caps and multiple punctuation marks, It is disturbing, off-putting, and looks like rude shouting.
It won't get you faster or better help. In fact, it may get you no help at all.