Related by context. Frequent words. (Click for all words.) 45 mysteries 42 dilemmas 42 solving 41 mystery 41 unsolvable 40 riddle 39 conundrums 37 conundrum 37 paradoxes 37 riddles 36 vexing 36 solve 36 humankind 35 dilemma 35 solvable 35 ethical dilemmas 35 whodunit 34 paradox 34 predicaments 34 puzzle 34 unsolved 34 moral dilemma 34 problem solvers 33 injustices 33 solves 33 unsolved murders 33 unsolved crimes 33 puzzles 33 fictional characters 33 mankind 33 supernatural 32 contradictions 32 Solving 32 social ills 32 crises 32 tragedies 31 existential 31 root causes 31 quandary 31 metaphysical 31 sleuth 30 enigma 30 intractable 30 fascinating 30 complexities 30 inequity 30 knotty 30 inconvenient truth 30 duality 30 challenges 30 inner demons 30 fallacy 30 overpopulation 30 demons 30 insoluble 29 madness 29 thorny 29 nightmare 29 ills 29 humanitarian crises 29 solved 29 gridlock 28 cruel irony 28 perplexing 28 inequities 28 quest 28 messes 28 ways 28 vitally important 28 detective 28 minutia 28 problem 28 societal 28 absurdities 28 problem solving 27 Mysteries 27 terrors 27 monumental task 27 bedeviling 27 imperative 27 amnesiac 27 quantum physics 27 predicament 27 plotlines 27 cognitive dissonance 27 metaphysics 27 monumental 27 mythologies 27 situations 27 inescapable 27 fiction 27 simplest 27 paranormal 27 crisis 27 thorniest 27 conflicts 27 enigmatic 27 philosophical 27 messiness 27 neuroses 26 horrors