"Why didn't 4 enter the haunted…

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

“Why didn’t 4 enter the haunted house?”/“Because it was 2 squared.”