Batman , Superman , Wonder Woman, the Flash , Aquaman, and Cyborg.
Batman and Superman
The X Men
The Flash, Aquaman, Superman ,and Batman
He is Superman's father
He is the owner of a corporation called LexCorp.
He is Superman's boss
His is the Mayor.
He got exposed to some chemicals
A Spider bite.
After an experiment
He ate something toxic.
Because of his fearlessness
Because of his speed
Because of the "healing factor" also known as his powerful regenerative ability
Because he is a leader
Here's an interesting quiz for you.