riddle
A verbal puzzle, mystery, or other problem of an intellectual nature.
An ancient verbal, poetic, or literary form, in which, rather than a rhyme scheme, there are parallel opposing expressions with a hidden meaning.
To speak ambiguously or enigmatically.
To solve, answer, or explicate a riddle or question.
(sieve) A sieve with coarse meshes, usually of wire, for separating coarser materials from finer, as chaff from grain, cinders from ashes, or gravel from sand.
A board with a row of pins, set zigzag, between which wire is drawn to straighten it.
To put something through a riddle or sieve; to sieve; to sift.
To fill with holes like a riddle.
(figuratively) To fill or spread throughout; to pervade (with something destructive or weakening).
(obsolete) A curtain; bedcurtain.
(religious) One of the pair of curtains enclosing an altar on the north and south.
(obsolete) To plait.