“How did the egg cross the road?”/“It scrambled across.”

“Why did the chicken cross the road?”/“To get to the other side” is a classic riddle from the 19th century. An egg version is:
 
Q: How did the egg cross the road?
A: It scrambled across.
 
The joke was printed in many newspapers in 1987.
 
       
17 April 1987, Ithaca (NY) Journal, “Just for Laughs,” Pennywhistle Press, pg. 7, col. 1:
Question: How did the egg cross the road?
Answer: It scrambled across.
Lisa Bishop Age 9
Sedro Valley, Washington
     
Google Books
Kids’ Funniest Jokes
Edited by Sheila Anne Barry
Illustrated by Jeff Sinclair
New York, NY: Sterling Publishing Company, Inc.
1993  
Pg. 81:
How did the egg cross the road?
It scrambled across.
BREANNE STEPHENSON, 8
 
27 April 2003, Newsday (Long Island, NY), Kidsday sec., pg. 1:
Joke of the Week
How did the egg cross the road?
Answer
It scrambled across - Candice Hahm
     
14 July 2004, Los Angeles (CA) Times, “The Kids’ Reading Room; Jokes & Riddles,” pg. E17:
How did the egg cross the road? It scrambled.
Shyanne, 7
Hathaway Elementary
Oxnard
     
Google Groups: alt.humor.puns
Kids Puns of the Weak 03-05-01
Stan Kegel
3/1/05
(...)
How did the egg cross the road?
It scrambled across (Matthew, 6)
 
Twitter 
Randy Schmidt
@R38Y
How did the egg cross the road? It scrambled.
11:21 AM - 25 Nov 2008
   
Google Books
Happy Smile:
Jokes for Kids
By Adam Smith
Lulu Press (Lulu.com)
2017
Pg. ?:
Q: How did the egg cross the road?
A: It scrambled across!
 
Twitter
Nathan Taylor
@chieffunologist
Carla: Why did the rubber chicken cross the road?
Marla: She wanted to stretch her legs.
 
Austin: How did the egg cross the road?
Ozzie: It scrambled across.
12:25 AM - 23 Jan 2018