Super quick answer, but right off the top of my head 'Check, Please' by Jonathan Rand is a handy one, always popular with audiences. There are three plays, and the author, if you reach out to him, is lovely to work with.
'This is a Test' is short and sweet.
These are very popular titles and are done a lot, but I wasn't sure if you're looking for general comedy title suggestions, or something more advanced. 'Mutually Assured Destruction' by Don Zolidis is also a good bet, though not within the 20-30 minute range.
Also, you might consider 'Too Much Light Makes the Baby Go Blind', which is a super adaptable collection of micro plays...
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Phillip Goodchild
Theatre Arts Instructor
Etobicoke ON
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Original Message:
Sent: 07-20-2018 12:28
From: Melissa Albertson
Subject: One act plays
Hi All,
I am planning to do a Night of One Acts, and wanted to know if there are any suggestions of comedic one acts, about 20 to 30 minutes long.
Thank you,
Melissa Albertson
Sent from my Verizon, Samsung Galaxy smartphone