A haunted house riddle is:
Q: Why didn’t 4 enter the haunted house?
A: Because it was 2 squared.
“2 squared” sounds like “too scared.” The pun was posted on Twitter on July 26, 2011, and on Reddit—Jokes on March 11, 2018.
Twitter
Kim Shasteen Carter
@KimmyLea
You should be in the show, Bistro! 
RT @BkstageBistro: Q: Why wouldn’t four go into the haunted house?
A: Because it was two squared!
3:35 PM - 26 Jul 2011
Twitter
Flavor-Blasted Valerie
@valeriehalla
Why couldn’t four go in the haunted house?
Because it was two squared!!!
6:16 PM - 5 Apr 2015
Twitter
The Mathsketeers
@Group1Weds
Why didnt the number 4 get into the disco.... Beacuse it was two squared @BeckyHighMaths
7:47 AM - 17 Jun 2015
Twitter
Phil Crissman
@philcrissman
Why didn’t the number four go out for Halloween?
Because it was two squared
#dadjokes #sorry
10:18 AM - 21 Oct 2016
Reddit—Jokes
Why didn’t 4 enter the haunted house?
submitted March 11, 2018 by Awesause
Because it was 2 squared
Azurphax
Two squared? Kinda sounds like too scared
Twitter
RAMMY
@_ramsin
why didn’t 4 enter the haunted house?
Because it was 2 squared
1:22 PM - 11 Mar 2018
Twitter
Brata George
@BrataGeorge
Why didn’t 4 enter the haunted house? Because it was 2 squared #smile #reddit #jokes
1:30 PM - 11 Mar 2018
Twitter
Lame Jokes
@lamejokes_net
Why didn’t 4 enter the haunted house? http://ift.tt/2p1F1jR
Because it was 2 squared
#jokes
1:35 PM - 11 Mar 2018
Above, a 1934 plaque from the Big Apple Night Club at West 135th Street and Seventh Avenue in Harlem. Discarded as trash in 2006. Now a Popeyes fast food restaurant on Google Maps.
Recent entries:
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Entry in progress—BP (6/2)
More new entries...
Above, Big Apple Corner at 54th Street and Broadway in Manhattan. Google Maps.
Above, John J. Fitz Gerald, from the Aug. 15, 1931, Binghamton (NY) Press, pg. 14.
Listen to Robert Emmerich introduce "The Big Apple," a hit song from 1937. Music written by Bob and performed by Tommy Dorsey's Clambake Seven with Bob on piano. Lyrics written by Buddy Bernier and sung by Edythe Wright. Audio provided by Dorothy Emmerich.
Also listen to a 1937 "The Big Apple" song by Ozzie Nelson and his Orchestra. See a 1929 photo of John J. Fitz Gerald and a 1931 photo of John J. Fitz Gerald.
This site is edited by Barry Popik.