Which team is often called "Gang Green"?

What are the primary colors of the Minnesota Vikings? What are the primary colors of the Chicago Bears? Which team's mascot is named "Blitz"? Which team is nicknamed the "Big Blue"? Which team's fight song is "Hail to the Redskins" (now "Hail to the Commanders")? Which NFL team's fight song is "Fly, Eagles Fly"? Which city hosted Super Bowl LIX in February 2025? Which city hosted Super Bowl LVIII, the first Super Bowl in Nevada?