“What has a foot, but no leg?”/“A ruler.”

A metric riddle is:
   
Q: What has a foot, but no leg?
A: A ruler.
   
The riddle has been cited in print since at least 2014.
 
         
Twitter
Agustina
@OlmosA_
@Calum5SOS
calum hood from 5sos
what has a foot
but no leg? a ruler!
follow me please
make my wish come
true, i love you
so
6:39 AM · Jul 17, 2014·Twitter for Nokia S40
 
Twitter
Leo
@litzoul
Replying to @litzoul
@Louis_Tomlinson what has a foot but no leg?
a ruler
1:20 AM · Jul 19, 2014·Twitter for Android
 
Google Books
Belly Laugh Riddles and Puns for Kids:
350 Hilarious Riddles and Puns
By Sky Pony Editors
New York, NY: Skyhorse Publishing
2016
Pg. ?:
Q: What has a foot but no leg?
A: A ruler.
   
2 February 2016, Today show (NBC TV):
HODA KOTB: What has a foot but no leg?
KATHIE LEE GIFFORD: So the answer is, a ruler.
HODA KOTB: A ruler.
KATHIE LEE GIFFORD: We thought maybe it’s a ruler or a—
HODA KOTB: Or a bed.
KATHIE LEE GIFFORD: No, but a bed has a foot, too. So—
HODA KOTB: Right.
KATHIE LEE GIFFORD: Maybe a hot dog, a foot-long hot dog.
HODA KOTB: Wait, but a bed has a foot, but no legs if it’s on the ground.
 
Google Books
Actually. Best. Jokes. Ever.:
Joke Book for Kids
By Chantelle Grace
Racine, WA: BroadStreet Kids
2017
Pg. ?:
I have a foot but no leg.
What am I?
A ruler.
 
Google Books
Topsy-Turvy Tongue Twisters and More
San Diego, CA: Silver Dolphin Books
2019
Pg. 200:
What has a foot but no leg?
A ruler.
 
Facebook
Keith E Sibley
April 15, 2021 at 11:08 AM ·
Riddle of the Day
What has a foot but no leg? A ruler.