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cryptogram
cryptogram
synonyms
secret writing
cryptograph
mystification
tough nut to crack
teaser
enigma
puzzlement
stumper
riddle
stickler
perplexity
twister
question
problem
conundrum
sixty-four dollar question
mindboggler
closed book
rebus
braintwister
poser
puzzle
cliffhanger
cipher
charade
bewilderment
crux
grabber
why
code
coded message
sphinx
mystery
dilemma
whodunit
intricacy
plight
maze
entanglement
subtlety
sixty-four-thousand-dollar question
mind-twister
tough proposition
inscrutableness
occult
difficulty
puzzler
predicament
knotty question
inscrutability
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cryptogram
antonyms
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