1. I think he would name his book that because the world wasn't trying to stop the nazis from doing anything. While the jews were in the camps they felt like no one was doing anything to try and stop them. They felt like they would never get out of the camps.

2. He would name the book night because the whole time he was in the camp it felt like dark times all the time. It was always dark and twisted in the camps. All day it must have felt like night with ashes in the air.    

3. I think The World Remained Silent is a better name because it is a true statement. Other countries tried to stop the nazis but weren't putting in a 100% effort to free the Jews.  It also is easier t understand then Night. Since it was night you have to think more about it but i like the other better because its easier.