teaser

definition: a flat at each side of the stage to prevent the audience from seeing into the wings
example:
speech part: noun
synonyms: tormentor tormenter
definition: an attention-getting opening presented at the start of a television show
example:
speech part: noun
synonyms:
definition: a particularly baffling problem that is said to have a correct solution
example:
speech part: noun
synonyms: puzzle
definition: an advertisement that offers something free in order to arouse customers' interest
example:
speech part: noun
synonyms:
definition: someone given to teasing (as by mocking or stirring curiosity)
example:
speech part: noun
synonyms: tease
definition: a worker who teases wool
example:
speech part: noun
synonyms:
definition: a device for teasing wool
example: a teaser is used to disentangle the fibers
speech part: noun
synonyms:

How teaser is being used?