What is the meaning of 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.

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.

To fill or spread throughout; to pervade (with something destructive or weakening).

A curtain; bedcurtain.

One of the pair of curtains enclosing an altar on the north and south.

To plait.

Source: wiktionary.org