“How do you like school, Billy?”/“Closed.”

A joke was printed in the New York City humor magazine Judge in 1922:
 
Kind Old Gentleman—How do you like school, my little man?
Little Man—I like it closed, sir.
 
The joke is still told today, often with a young student named Billy or Bobby or Joe.
 
   
Google Books
The Judge
Volume 83
1922
Pg. 325:
Kind Old Gentleman—How do you like school, my little man?
Little Man—I like it closed, sir.
 
17 December 1922, The Sunday Star (Washington, DC), pt. 2, pg. 15, col. 2:
Kind Old Gentleman—How do you like school, my little man?
Little Man—I like it closed, sir.—Judge.
 
Google News Archive
17 December 1925, Pittsburgh (PA) Press, pg. 14, col. 2:
A Preference.
Dear Old Lady—How do you like school, my little man?
The Little Man—I like it closed, lady.—Passing Show, London.
 
Google News Archive
20 February 1932, Prescott (AZ) Evening Courier, “Hassayampa Yamps” by the Old Cattleman and His Grapevine Friends, pg. 4, col. 2:
“HOW DO YOU LIKE SCHOOL?” a youngster was asked. He replied: “I like it best when it’s closed.”
 
Google News Archive
3 July 1935, Sydney (Australia) Mail, pg. 58, col. 3:
AUNT: “Well, Tommy, how do you like school?”
Tommy: When it’s closed.”
 
Google News Archive
3 January 1966, The Free Lance-Star (Fredericksburg, VA), “The Chuckle Box,” pg. 19, col. 2:
Big Brother: Well, Joe, how do you like school?
Joe: Closed!
   
Google News Archive
31 October 1974, The Free Lance-Star (Fredericksburg, VA), “The Chuckle Box,” pg. 18, col. 2:
Aunt: Well, Billy, how do you like school?
Billy: Closed.
 
Google News Archive
26 November 1976, The Free Lance-Star (Fredericksburg, VA), “The Chuckle Box,” pg. 20, col. 2:
Aunty: Well, Bobby, how do you like school?
Bobby: Closed.
 
Twitter
chip il Colonnello
‏@stubbrnlove
@LittleMixOffic “how do you like school?” “closed” ahahah :D #makeleighlaugh
11:23 AM - 26 Feb 2013
 
Twitter
Scott St. Pierre
‏@scottstpierre
Q: How do you like School, Billy?
A: Closed.
10:43 AM - 6 Mar 2013
 
Twitter
Virat Kohli™
‏@viratkohli_x
JOKE= teacher: Ali, how do you like school? Ali: CLOSED xD — Lol :D http://ask.fm/a/a7hj290n
4:29 AM - 14 Jan 2014
 
Twitter
Byrd Bardot
‏@ByrdBardot
Question: “Hey Billy! How do you like school?”
Answer: “CLOSED!!!” #endofsummer #backtoschool http://instagram.com/p/sbQSmkmF9S/
9:10 PM - 1 Sep 2014