There are two two-minute warnings in a NFL game.
One at the end of the first half and one at the end of the game.
Yes, an overtime period in a regular season game is played with '4th quarter rules' with the exception that all challenges are initiated by the NFL officials in the replay booth.
No
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there are six refs in a NFL football game
3
42
In Soccer are penalties and NFL
5
There is no 'mercy rule' in the NFL. The game is played to the end regardless of the score. The biggest shutout in NFL history came in the 1940 NFL Championship Game when the Bears defeated the Redskins, 73-0.
About 170,000
6
Tonight's (12/27/2010) game will be the 23rd Tuesday night game in NFL history.
four losers
There are four quarters in an NFL game, there are 4 quarters to an NFL season. there are 4 quarters to any 1 whole.