Why?

Why do we have war? Why can't blacks and whites get along? Why do parents have to beat on eachother in front of their kids? Why are children being abandoned every day and when they are found it's too late? Why does God take all the good people from the world and leave all the bad ones on it? Why do families have to be torn apart because of drugs, alchohol, or rape? And why do we have to ask the question, ''why''? Why can't we know the answer?