Either a quill pen or a better image might be the two masks showing a smiling and a sad face which represent Comedy and Tragedy. His superhero costume would probably be in the colours of flags flown to represent either Comedy, Tragedy or History plays: White, black and red!
Superhero
The superhero with a lightning bolt on his costume is Shazam. Originally known as Captain Marvel, Shazam is a character from DC Comics who derives his powers from a magical word that transforms him into an adult superhero. The lightning bolt emblem represents his abilities, which include super strength, speed, and the power of flight.
Yes, you would get soaked.
The Incredible Hulk
Awesome.
There is no rhino emblem. Unless you are talking about the Ghost emblem, in that case it would be reaching 10th Prestige.
That would be Dodge, and the emblem is a Ram (goat).
If a superhero was in the middle of a fight and had to go to the bathroom they would likely hold it in until they had time to relieve themselves.
Gender Man sounds like an interesting character, but I'm not quite sure how his powers would be him a superhero. How would this power aide him in fighting crime or bad guys?
Green Lanteren
he would jump
They would heckle the actors and throw fruit.