useless trivia: What Word Means: In Groups Of Four?

Questions

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

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

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

VCRs: DSS stands for this (Hint:Audio related)?

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