“Who invented spaghetti?”/“Someone who used his noodle.”
“Noodle” is slang for the brain. A popular pun is:
Q: Who invented spaghetti?
A: Someone who used his noodle.
The “noodle” joke has been cited in print since at least 1921.
22 February 1921, Cobb County Times (Marietta, GA), “Timely Truths,” Rotary sec., pg. 5, col. 3:
Use your head! Even the fellow who invented spaghetti used the noodle.
15 April 1921, Salina (KS) Daily Union, pg. 2, col. 2:
“Use your head; even the fellow who invented spaghetti used a noodle.”
31 July 1950, Lexington (KY) Herald, “Brevities,” pg. 4, col. 3:
Take a tip from the man who invented spaghetti—use your noodle.
23 September 1973, Washington (DC) Star-News, “Mini Jokes,” Mini Page, pg. 3, col. 1:
Q: Who invented spaghetti?
A: A man who used his noodle.
Linda Smoyer
Google Books
March 1991, Boys’ Life, “Think & Grin,” pg. 66, col. 2:
Webelos Woody: Who invented spaghetti?
Jake: A person who used his noodle.
—Charles E. Harper Jr., Baton Rouge, La.
Google Groups: rec.humor
Riddle for kids
Dan Fuller
5/16/96
Q - Who invented spaghetti?
A- Someone who used their noodle.
Google Books
Funny Riddles
By Jacqueline Horsfall
New York, NY: Sterling Publishing Company, Incorporated
2003
Pg. 5:
Who invented spaghetti?
Someone who used his noodle.
Google Groups: alt.humor.puns
Puns of the Weak 06-06-03
Stan Kegel
6/6/03
(...)
Who invented spaghetti?
Someone who used his noodle. (Ginger, 8)
Twitter
Scott Humston
@scotthumston
Who invented spaghetti? Someone who used his noodle!
2:45 PM - 28 Feb 2012
Twitter
KozuKat
@BarbKozulla
The guy who invented pasta must have really used his noodle.
9:18 PM - 6 May 2012
Twitter
Denise Lucas
@DeniseLucas101
@TheEllenShow: Who invented spaghetti? A guy who used his noodle! #ClassicJokeMonday
4:57 PM - 25 Jun 2012
Twitter
Denise Lucas
@DeniseLucas101
“@TheEllenShow: National Pasta Day & #ClassicJokeFriday! Know any good pasta jokes?”
Who invented spaghetti? Someone who used their noodle.
12:59 PM - 17 Oct 2014