Which team's primary logo is a star?

Which team did Paul Brown found after leaving Cleveland? Which team was founded and coached for decades by George Halas, known as "Papa Bear"? Which NFL team's helmet famously has no logo on it? Which team's helmet logo appears on only one side of the helmet? Which team uses a lightning bolt as its logo? Which team's logo is a fleur-de-lis? Which team's mascot is a pirate? What is the name of the Denver Broncos' live horse mascot that runs after touchdowns?