(at around 2 mins) As the Officer looks at Anthony Reed's driver's license you can clearly read that he was born on 03/01/1983 and the license was issued on 12/13/94 with an expiration date of 03/31/99.
That would mean that the Commonwealth of Virginia DMV issued a driver's license to an 11 year old that would expire 30 days after he just turned 16, which was the minimum legal age for a driver's license in Virginia at the time.
When Mulder joins Scully after the sheriff is admitted to Hospital, there is clearly a red 'x' marked in tape on the floor of the corridor, used to indicate where Mulder must stop to begin dialogue with Scully while maintaining the optimum camera angle.
When teacher Babbit announced the two minute warning to the class for the exam to wrap up, there were three minutes left on the clock until 12:00 noon.