In 'Teenage Mutant Ninja Turtles', what is the name of the turtles' rat mentor?

In 'Scooby-Doo', what is Shaggy's real first name? In 'The Flintstones', what is the name of Fred's wife? In 'The Flintstones', what is Fred's catchphrase? In 'The Jetsons', what is the name of the family's robot maid? Which Teenage Mutant Ninja Turtle wears a blue mask? In 'Sesame Street', which Muppet lives in a trash can? In 'Sesame Street', which Muppet loves cookies? In 'Sesame Street', what color is Elmo?