“What do frogs drink?”/“Hot croako.”

A frog riddle is:
 
Q: What do frogs drink?
A: Hot croako.
 
The “hot croako”/“hot cocoa” joke was posted on the newsgroup sci.geo.geology on June 28, 2000.
 
“What is a frog’s favorite drink?”/“Croak-a-cola” is a similar riddle.
 
       
Google Groups: sci.geo.geology
THE MAJOR SYDNEY QUAKE
Reety
6/28/00
(...)
What do frogs drink ?
Hot croako !
 
Google Books
Greatest Giggles Ever
By Matt Rissinger and Philip Yates  
New York, NY: Sterling Publishing Company, Inc.
2003  
Pg. 9:
What do frogs drink for breakfast?
Hot croako with marshmallows.
   
Google Books
LOL!: Laugh Out Loud Joke Book!
By Sarah Perez
New York, NY: Tangerine Press
2004
Pg. ?:
What do frogs like to drink on cold days?
Hot croako.
 
Google Books
Sit! Stay! Laugh!:
A Book of Pet Jokes
By Michael Dahl
Minneapolis, MN: Picture Window Books
2005
Pg. 19:
What do frogs like to drink in the winter?
Hot croako.
 
Twitter 
Daily Joker‏
@DailyJokePost
What do frogs drink ?
Hot croako ! http://dailyjokepost.com/1018
6:59 PM - 27 Sep 2009
   
Google Books
Best Jokes Ever:
Jokes for Kids
By Chantelle Grace
Racine, WI: BroadStreet Kids
2017
Pg. ?:
What is a frog’s favorite hot drink?
Hot croako.
 
9 June 2017, News Mail Bundaberg (Bundaberg, Queensland), pg. 13:
What do frogs drink?
Hot croako.
 
Twitter
Lucky Score‏
@LuckyScoreNet
What do frogs drink ?
Hot croako !
#Joke from #FrogJokes in #Jokes, #Humor and #Satire
3:25 PM - 25 Oct 2017