Related by context. Frequent words. (Click for all words.) 61 solving puzzles 55 puzzles 53 brainteasers 49 brain teasers 49 solve puzzles 49 puzzle solving 49 scavenger hunts 48 Sudoku puzzles 47 crossword puzzles 46 jigsaws 46 scavenger hunt 46 anagrams 46 deductive reasoning 46 riddles 45 deciphering 45 treasure hunts 45 memorizing 44 mathematical 44 crosswords 44 treasure hunt 43 sentient 43 mazes 43 questing 43 jigsaw puzzles 42 teleportation 42 powerups 41 treasure chests 41 mathematical calculations 41 minigames 41 trivia 41 super sleuth 41 Sudoku puzzle 41 monsters 40 mysteries 40 beasties 40 robots 40 artificial intelligence 40 quests 40 subatomic 40 mythical creatures 40 neural 40 mathematical equations 40 telekinesis 40 quantum physics 40 deducing 39 adventuring 39 Elebits 39 teleporting 39 muggles 39 fiendish 39 abstract concepts 39 visualizing 39 fiendishly 39 creatures 39 wormholes 39 sentience 39 puzzlers 39 mental arithmetic 39 mind bending 39 computational 39 Problem solving 38 Spectrobes 38 equations 38 sussing 38 abstruse 38 sleuth 38 deductive 38 scrabble 38 memorization 38 optical illusions 38 unlock 38 decipher 38 cosmic 38 lightsabers 38 computer 38 problem solving 38 imaginative 37 unlocking 37 crossword puzzle 37 spooky 37 autonomous robots 37 sleuthing 37 LEGOs 37 mathematical concepts 37 Rubik cube 37 mysterious 37 unlocks 37 paranormal phenomena 37 goblin 37 runes 37 puzzle 37 beings 37 pumpkin decorating 37 earthlings 37 supernatural 37 levitation 37 differential equations 36 fantastical 36 labyrinths 36 crossword 36 brainpower