Fred Biletnikoff was named MVP of which Super Bowl?

Which head coach led the Pittsburgh Steelers to victory in Super Bowl X? In what year was Super Bowl X played? Which team did the Oakland Raiders defeat in Super Bowl XI? Who was named MVP of Super Bowl XI? In which city was Super Bowl XI played? Which head coach led the Oakland Raiders to victory in Super Bowl XI? In what year was Super Bowl XI played? Which team did the Dallas Cowboys defeat in Super Bowl XII?