In what year did the NFL require players to wear a helmet? 1950, 1943, 1946 or 1940 What is average attendance of an NFL game? 66,957, 70,012, 68,346 or 67,356 Which way does the NFL require all (open) stadiums be built? East and West or North and South and what is the reason? Around _____ % of the game on TV is devoted to replays? 62, 56, 45 or 52 Note: Cheat after you guess These silly facts were found in a ultimate puzzle book. TBH I don't trust the answers are correct. And I'm too lazy to look it up. I'll take their word. I'm guessing you could go to numerous sites and get many different answers on attendance.