1. name the cell organelle which helps in protein synthesis???

2. name the cell organelle which helps during the cell division????

Your friends have answered correctly-  the cell organelle which helps in protein synthesis is Ribosomes. The cell organelle which helps during the cell division is nucleus. In case of animals there is another cell organelle called centrosome which is absent in plants also plays an important role in cell division. 

You will learn more about centrosome in your higher grades.

@Khushi, Rajat & Jitendra:- Good answer, keep contributing!!