Wrong. Four of a kind contains six pairs:
Heart-Diamond
Heart-Spade
Heart-Club
Club-Diamond
Club-Spade
Diamond-Spade
Hotel California
99 Luftballons (99 Red Balloons), Nena.
Wrong. Four of a kind contains six pairs:
Heart-Diamond
Heart-Spade
Heart-Club
Club-Diamond
Club-Spade
Diamond-Spade