Solution: If Xiao Ming answers the X question incorrectly, the number of questions he doesn't answer is ﹙ x+2 ﹚, and the title of the correct answer is ﹙x+2﹚-2x-2 ﹚.

His total score is 74.

∴4﹙25-2x-2﹚-x=74

100-8x-8-x=74

﹣9x=﹣ 18

x=2

∴25-2x-2= 19

A: You answered 19 questions correctly.