From The Collaborative International Dictionary of English v.0.48:
Riddle \Rid"dle\, v. t. To explain; to solve; to unriddle. [1913 Webster]
Riddle me this, and guess him if you can. --Dryden. [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Riddle \Rid"dle\, v. i. To speak ambiguously or enigmatically. "Lysander riddles very prettily." --Shak. [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Riddle \Rid"dle\ (r[i^]d"d'l), n. [OE. ridil, AS. hridder; akin to G. reiter, L. cribrum, and to Gr. kri`nein to distinguish, separate, and G. rein clean. See Crisis, Certain.] 1. 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. [1913 Webster]
2. A board having a row of pins, set zigzag, between which wire is drawn to straighten it. [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Riddle \Rid"dle\, v. t. [imp. & p. p. Riddled (r[i^]d"d'ld); p. pr. & vb. n. Riddling (r[i^]d"dl[i^]ng).] 1. To separate, as grain from the chaff, with a riddle; to pass through a riddle; as, riddle wheat; to riddle coal or gravel. [1913 Webster]
2. To perforate so as to make like a riddle; to make many holes in; as, a house riddled with shot. [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Riddle \Rid"dle\, n. [For riddels, s being misunderstood as the plural ending; OE. ridels, redels. AS. r[=ae]dels; akin to D. raadsel, G. r[aum]thsel; fr. AS. r[=ae]dan to counsel or advise, also, to guess. [root]116. Cf. Read.] Something proposed to be solved by guessing or conjecture; a puzzling question; an ambiguous proposition; an enigma; hence, anything ambiguous or puzzling. [1913 Webster]
To wring from me, and tell to them, my secret, That solved the riddle which I had proposed. --Milton. [1913 Webster]
'T was a strange riddle of a lady. --Hudibras. [1913 Webster]