I got 1,2,3,4,6,7,10 and 15 for a total of 8 correct.  I am a learner and just 1 short of an operator with 40% correct-that is hard.
PS- Has anyone ever heard of this. 
8) Necessary to start a car, this item means "the holler guy" on the team, the one who keeps the others on their toes and provides inspirational leadership.
A: Spark Plug  [???1]  
![Head Scratch    [scratch] [scratch]](/images/smilies/icon_smile_headscratch.gif)