home

The Ultimate Code Quiz

Test your knowledge of famous codes, hidden rules, secret systems, and mysterious clues from history, science, technology, and pop culture. Think carefully, follow the hints, and see if you can crack them all.
Quiz by
SamanJasem56
Rate:
Last updated: May 20, 2026
You have not attempted this quiz yet.
More quiz info >>
First submittedMay 20, 2026
Times taken7
Average score55.6%
Report this quizReport
Quiz and answer stats >>
Shared scores >>
6:00
Enter answer here
0
 / 18 guessed
The quiz is paused. You have remaining.
Scoring
You scored / = %
This beats or equals % of test takers also scored 100%
The average score is
Your high score is
Your fastest time is
Keep scrolling down for answers and more stats ...
Hint
Answer
Communication in dots and dashes.
Morse code
A British mathematician deciphered this Nazi code.
Enigma code
Restaurants made this code famous.
QR code
Biologists deciphered this code of life, Nature’s programming language.
Genetic code
Clues hidden inside famous paintings, named after a very famous artist also the name of a movie from 2006.
Da vinci code
A secret command for extra powers.
Cheat code
A high-priority emergency signal, also used in the movie A Few Good Men.
Code red
You must follow it before entering.
Dress code
One of the oldest written law systems in history, nearly 4000 years ago.
Code of Hammurabi
A code used at ATMs and phones.
PIN code
A sea code among sailors and thieves, a lawless sea code.
Pirate code
+36 is used for Hungary.
Country code
The code computers use for letters and symbols.
ASCII code
Two or three letters that represent a nation or a code used instead of full country names.
ISO code
A law code created under a Byzantine Emperor, influenced law in Europe for over 1,000 years.
Justinian code
A code based on strength, endurance, and loyalty. A strict warrior code linked to ancient Greek soldiers.
Spartan code of conduct
The warrior code of feudal Japan.
Samurai code/ Bushido code
A French legal code regulating slavery in colonial territories.
Code noir
Save Your Stats
Your Next Quiz
Top World Languages
Name the world's most widely spoken languages.
Countries by Borders in 90 Seconds
When you guess a country, all the countries it borders will also be completed. Can you fill in the world map in just 90 seconds?
World Map Without 20 Random Countries
20 random countries have been removed from the map of the world! Can you identify them in 3 minutes?
Pin US States on a Borderless Map - Sudden Death
Drag the flag onto the correct state. Careful, though! One wrong move and the game ends.
Comments
No comments yet
Copyright H Brothers Inc, 2008–2026
Contact Us | Go To Top | View Desktop Site | Site Map