enigmas
Questions without answers
Enigmas is the plural of enigma—people, things, or situations that are mysterious or difficult to understand.
An enigma resists explanation: The case remains one of history's great enigmas.
A person who seems unknowable is an enigma: She was an enigma to her colleagues, friendly but utterly private.
Problems designed to challenge
- riddlesPuzzling questions or teasers
- conundrumsPerplexing difficult problems
- secretsConcealed information
- mysteriesUnexplained phenomena or events
unknowns · paradoxes · brainteasers · cipher · cryptograms · whodunits · sphinx · labyrinth
Symbolic picture-based writing
- Rosetta StoneDecree in three scripts
- StonehengePrehistoric megalithic circle
- pyramidsApex-topped geometric solids
- Easter IslandRemote volcanic island with monoliths
oracle · sphinx · Atlantis · lost civilizations · artifacts · relics · inscriptions · glyphs
Mysterious, unreadable person
- Mona LisaRenaissance portrait, famously inscrutable
- strangersPeople unknown to you
- reclusesPeople avoiding all society
- introvertsPeople preferring minimal socializing
eccentrics · mystics · savants · oracles · loners · outsiders · dark horses · wild cards
Lightless cosmic mass
- black holesRegions of inescapable gravity
- consciousnessState of sentient awareness
- quantumSmallest discrete unit
- singularityPoint where values explode
anomalies · phenomena · paradoxes · Fermi paradox · antimatter · dark energy · origin of life · parallel universes
puzzles
Problems designed to challenge
- riddlesPuzzling questions or teasers
- conundrumsPerplexing difficult problems
- secretsConcealed information
mysteries · unknowns · paradoxes · brainteasers · cipher · cryptograms · whodunits · sphinx · labyrinth · maze
hieroglyphics
Symbolic picture-based writing
- Rosetta StoneDecree in three scripts
- StonehengePrehistoric megalithic circle
- pyramidsApex-topped geometric solids
Easter Island · oracle · sphinx · Atlantis · lost civilizations · artifacts · relics · inscriptions · glyphs · codices
sphinx
Mysterious, unreadable person
- Mona LisaRenaissance portrait, famously inscrutable
- strangersPeople unknown to you
- reclusesPeople avoiding all society
introverts · eccentrics · mystics · savants · oracles · loners · outsiders · dark horses · wild cards · unknown quantities
dark matter
Lightless cosmic mass
- black holesRegions of inescapable gravity
- consciousnessState of sentient awareness
- quantumSmallest discrete unit
singularity · anomalies · phenomena · paradoxes · Fermi paradox · antimatter · dark energy · origin of life · parallel universes · time
- puzzlespuzzles, sudoku, jigsaw puzzle, puzzle cube, crossword
- riddlesriddles, riddle, conundrums, conundrum, brainteasers
- brain teasersriddle, brain teaser, logic puzzles, puzzle, brainteasers
- mind bogglersriddles, paradoxes, logic puzzles, brain teasers, trick questions
- mysteriesmystery, puzzle, riddle, mysteries, question mark
- puzzlerspuzzle master, brainteasers, brain-teasers, conundrums, puzzles
enigmascertainties
Assured truths
open books · known quantities · givens · simplicities · clarities
enigmasrevelations
Surprising facts made known
disclosures · transparencies · clarities · explanations · solutions
enigmasrevelations
Surprising facts made known
disclosures · open secrets · self-evident truths · axioms · truisms
- Enigma machineElectromechanical encryption device
- enigmatic figurePuzzling, hard-to-read individual
- Enigma codeWWII German military cipher
- riddle wrapped in an enigmaUtterly baffling matter