useless trivia: What Word Means: One Who Uses An Adz?

Questions

Frank Lloyd Wright son John invented these after watching workers move timber.?

This is the game that "Ties you up in knots".?

You meld groups of three cards or more of the same rank or suit in this game.?

DSS stands for this (Hint:Audio related)?

This company produces VCR's with APC(Automatic Picture Control)?