“Why did the chicken cross the road?”/“To get to the other side” is a classic riddle from the 19th century. A snail version is:
 
Q: Why did the snail cross the road?
A: I don’t know. It hasn’t gotten there yet.
   
“Why did the snail cross the road?....I don’t know it hasn’t got there yet?” was posted on Twitter on June 4, 2009.
 
     
Twitter
Anita Searle
@AnitaSearle
JFTD Why did the snail cross the road?....I don’t know it hasn’t got there yet?....It’s the way I tell ‘em you know…
6:57 AM - 4 Jun 2009
 
18 August 2011, The Guardian (London, UK), “G@: Kids,” pg. 13:
YOUR JOKE
Why did the snail cross the road?
I don’t know - it hasn’t got there yet!
Beren Breeze, 5
   
Twitter
Hazel Boomkamp-Lee
@lula_rocket
#Comedy #Kids
- Why did the snail cross the road?
- I don’t know, he hasn’t got there yet… 😊
3:26 PM - 14 Oct 2013
 
Twitter
Aimée STANS Get A Grip 👊🏻 🖤
@aimeeelogan
@leahlogan2004 why did the snail cross the road?
don’t know it hadn’t gotten there yet.
2:29 PM - 8 Nov 2014
 
Reddit—Jokes
Why did the snail cross the road ?
submitted December 18, 2016 by y2k2r2d2
It is not clear yet , let it cross the road first.
Update : It has been confirmed that it was to meet the Chicken who crossed the road earlier.
 
Twitter
Bob Swanston
@SwanstonRobert
#BadJokeFriday
Why did the snail cross the road?
I don’t know…. it hasn’t got there yet.
6:23 AM - 6 Oct 2017
 
Twitter
Bob Swanston
@SwanstonRobert
#badjokethursday
Why did the snail cross the road?
Feck knows, he hasn’t got there yet.
8:50 PM - 28 Feb 2018