I don't know when the buzzers are enabled for answers, I believe they make you listen to the entire clue, but Ken is obviously reading ahead and is ready sooner than his opponents who have not caught on the this.
I think his run is awsome.
Yep. I think he just presses the buzzer first and then figures out or guesses the answer. He is good. Else he is just facing the 'bum of the day'. Maybe they should bring back previously undefeated people.