There are 13 main puzzles in Black Mirror 1:

torn up photographTorn Up Photographsolar puzzle 1Globe Puzzlefountain puzzle 1Pump Controltorn paper puzzle 2Torn Paperaltar puzzle 1Altar Puzzleriddle puzzle 4Riddle Puzzlepower lever puzzle 1Power Levercircuit board puzzle 1Circuit Boardaltar puzzle 1 cropZodiacknights puzzle 1 cropJewelry Boxsafe puzzle 1Safe Puzzlepentagram puzzle 1Pentagrammaze puzzle 1Maze