solve (a problem); answer (a question); unravel (a riddle) / comb; untangle (hair)

untie; unravel; undo (a fastening); unwrap / dispel (doubts); clear up (a matter)

easy

easy to (verb) / (verb) happens easily, tends to (verb)

easy to ～ / ～able

question, problem on homework etc. / a question; a matter (of time etc.) / a problem (something that needs to be dealt with); a trouble / an issue; a matter

Alternative form of 言うは易く行うは難し

(informal) no problem

unthinkable, out of the question

practical question (problem)