Educational Card Game - MindTrap Geometrical Riddles - Math Brain Teasers - Genius Level Train your brain with MindTrap Geometrical Riddles Genius Level. This stimulating assortment of pattern recognition problems, geometrical puzzles and mathematical riddles will exercise your brain while tickling your funny bone. In the twisted world of MindTrap, it's not what you know that counts, it's how you think. For 1 or More Players. Ages 12 and Up.