n. One who riddles (grain, sand, etc.). [ 1913 Webster ]
n. One who speaks in, or propounds, riddles. [ 1913 Webster ]
The Riddler [ Capitalized ]
n. (Zool.) The jacksnipe. [ Local, U. S. ] [ 1913 Webster ]
n. One who unriddles. Lovelace. [ 1913 Webster ]