“Where do baby ghosts go during the day?”/“Dayscare centers.”

A baby ghost riddle is:
 
Q: Where do baby ghosts go during the day?
A: Dayscare centers.
 
The popular Halloween riddle was posted on the newsgroup alt.folklore.ghost-stories on October 31, 1997.
 
   
Google Groups: alt.folklore.ghost-stories
[Fwd: HALLOWEEN FUNNIES] (fwd)
Anonymous
10/31/97
(...)
Where do baby ghosts go during the day?
Dayscare centers
 
29 October 1999, Anniston (AL) Star, “Halloween humor,” pg. 5C, col. 3:
Where do baby ghosts go during the day?
Dayscare centers.
 
Google Groups: alt.halloween.boo
Halloween Jokes
stirling
11/8/99
(...)
Q. Where do baby ghosts go during the day?
A. Dayscare centers

12 August 2000, The Times of India (Mumbai), “Ha!,” Bombay Times, pg. 4, col. 5:
Where do baby ghosts go during the day?
Dayscare centres.
   
Google Books
The Halloween Handbook:
447 Costumes
By Bridie Clark and Ashley Dodd
New York, NY: Workman Publishing
2004
Pg. 209:
Q: Where do baby ghosts go during the day?
A: A dayscare center.
 
Twitter
lizerati‏
@lizerati
Where do baby ghosts go during the day?
Dayscare centers!
11:58 AM - 31 Oct 2008
 
Twitter
Alien Boo‏
@AlienBeeNews
Q: Where do baby ghosts go during the day?
A: Dayscare centers.
12:46 PM - 13 May 2009
       
Google Books
101 Amazing Spooky Jokes
By Jack Goldstein
Andrews UK Limited
2013
Pg. ?:
Where do baby ghosts go during the day?
Dayscare centers!
 
Google Books
Halloween Jokes For Kids - 51 Jokes!
By Peter Crumpton
PeteyRF Creative
2015
Pg. ?:
Where do baby ghosts go during the day?
Dayscare centers.
 
KentLive (UK)
17 hilarious Halloween jokes for kids
Make sure you get into the spirit of things this Halloween
Sophie Madge
17:07, 18 OCT 2017
(...)
1. Where do baby ghosts go during the day?
Dayscare centers