quizzer

noun

1. A person who quizzes or asks questions.
2. A person who takes part in a quiz.

   “The Chasers were Trine Aalborg who, like Jenny Ryan, started out writing questions for quiz shows before appearing on them, professional quizmaster Jan Arild Breistein, who sadly passed away in 2019, and Thomas Kolasaeter, who claims modestly to be Norway's best quizzer!”

3. (dated)One who chaffs or mocks.

   “Meanwhile, the whirl of gaiety, the noise of merriment, was still going on around them. Frances was the ringleader of the quizzers of Lady Susan, and her ladyship evidently liked being quizzed, so that Frances did not think mercy necessary.”