The Question is a character who can see that there is more to life than what is given at face value. There are more things hidden in the shadows, than will ever be acknowledged or said in the light. The quote "There are more things under heaven and earth, than in your wildest dreams, Horatio"..comes to mind.
Hence he questions everything. And look to the conspiracies to find answers. His name is unique and stands out above other heroes.
Batman also had thought behind his name. And the fact that you called a bat a rodent, kind of shows how you're not really a valid source on this matter. Spider-man was bitten by a spider, super man is super, iron man has an iron suit, aqua man swims a lot and eats fish sticks sometimes. The names make sense and are actually realistic given the fact that they are easy to remember and are only aliases so that the real heroes didn't have to go out in public and risk their family and friend's lives to fight crime, or in Batman's case, risk his ideals and motivation.
You're kind of just truling to come into a super hero board and say that hero's names are stupid.
You need to think about it first before posting.