I got a haircut last night. The structure of the modern army has become very 'business' oriented. Soldiers fight but do not cut hair. Neither do they serve food, cook food, do engine maintenance, produce water, pick up trash or even check ID cards at the DFAC. Yes, there are exceptions but generally all those duties and other have been subcontracted out to the lowest (and hopefully the most efficient) bidder. Soldiers don't even guard the high profile individuals as a private security contractor does that. Anyway, for $3 now I get a pretty good haircut generally by some Pakistani and I tip $3.

Oh, the answers are 1. Cannot be determined 2. aunt and 3. 16 is incorrect (given a +2 x2 pattern.)