So, have at it! No one knows aviation trivia like you guys, so fling some
questions at me! (And answers would be good, too? :-)

How are runways numbered ?

What's the first letter in the aircraft tail number for all US aircraft ?
(wish I had been on Who Wants To Be A Millionaire that day)

Fastest aircraft in history that's not a spacecraft also ?

First guy to break the speed of sound in an aircraft ?