English edit

Etymology 1 edit

From riddle (to puzzle verbally) +‎ -er.

Noun edit

riddler (plural riddlers)

  1. One who asks riddles; a puzzler.

Etymology 2 edit

From riddle (to sieve) +‎ -er.

Noun edit

riddler (plural riddlers)

  1. One who riddles or sieves (grain, sand, etc.).