Alright, here goes a couple that have stumped me, then:
Team A has gained the line to gain and is awarded a new series, 1st and 10. Team A commits a dead ball taunting foul before the ready to play signal. Ruling: 1st & 10 after a 15 yd penalty.
I chose True, relying on 5-2-7. Apparently it is false, but I'm not sure why.
The game is stopped for an injured player. The player may remain in the game if the team is charged a timeout in the interval between downs or the period ends.
This is apparently True, although 3-3-5 would seem to indicate that the player must remain out of the game for at least one down.
I eagerly await the wisdom of the collective.