unriddle (?.)

• answer
• bottom
• break
• clear up
• crack
• debug
• decipher
• decode
• disentangle
• divine
• do
• dope
• dope out
• explain
• fathom
• figure out
• find out
• find the answer
• find the solution
• get
• get right
• guess
• guess right
• have it
• hit it
• interpret
• make out
• open the lock
• plumb
• psych
• psych out
• puzzle out
• ravel
• ravel out
• resolve
• riddle
• solve
• sort out
• undo
• unlock
• unravel
• unscramble
• untangle
• untwist
• unweave
• work
• work out