Detective Conan (Case Closed)
0Loading crowd target
0Loading crowd target
7correct to beat the crowd
50 free Detective Conan (Case Closed) trivia questions with answers — trivia quiz, new questions added Oct 2026.
Detective Conan has one of the best hooks in manga: a brilliant teenage sleuth is poisoned by a crime syndicate, wakes up in the body of a small child and has to keep solving murders while nobody takes him seriously. Since the 1990s the series, released in parts of the English-speaking world as Case Closed, has grown into more than a thousand chapters and episodes, plus a new feature film nearly every year. This quiz covers the whole case file. There are questions on Conan's gadgets and the people who share his secret, the men in black and the code names they hide behind, the rival detectives and the phantom thief who keeps getting away. Others go behind the scenes to creator Gosho Aoyama, the real-world inspirations for the characters' names, the voice cast, the films and the story behind the hero's famous catchphrase. It opens with easy questions for anyone who has watched a few episodes and builds to deep cuts for readers who follow every twist of the main plot. Every answer comes with a short explanation, so even a wrong guess leaves you with a new piece of trivia.
30 of 50 questions with answers and explanations. Play the quiz
Q 01Conan's trademark glasses were borrowed from which superhero, a favourite of creator Gosho Aoyama?
Superman
Superman hides behind Clark Kent's glasses, and Aoyama, a fan, gave Conan the same disguise. The characters even discuss the trick in volume 24 of the manga.
Q 02Which honorary post did talk-show host Conan O'Brien hold for one day in Gosho Aoyama's hometown in 2018?
Mayor
Mayor for a day, Conan O'Brien served hamburgers to the townspeople of Hokuei, which promotes itself as Conan Town. He had discussed the boy detective and the town on his talk show.
Q 03As an art student, Conan creator Gosho Aoyama painted backgrounds for which Tokyo Disneyland ride?
Pirates of the Caribbean
Pirates of the Caribbean was his part-time job while he studied at Nihon University's art college. He made his professional debut as a manga artist at 23.
Q 04Conan reached 100 volumes in 2021, a month after which manga whose author sent congratulations?
One Piece
One Piece passed the milestone a month earlier, and its author Eiichiro Oda sent Gosho Aoyama his congratulations. Conan was already the first series in its magazine to pass 1,000 chapters.
Q 05Gosho Aoyama modelled the original Detective Boys trio on the children from which classic manga?
Doraemon
Doraemon supplied the template of a big tough guy, a thin boy and a cute little girl, though Aoyama gave his trio completely different personalities. He created them to help conceal Ai Haibara.
Q 06Which Black Organization member, the slow-witted partner of Gin, is always drawn wearing sunglasses?
Vodka
Vodka never takes them off, so Gosho Aoyama says that not even he knows what the character's eyes look like. He designed the henchman in about 30 seconds.
Q 07Which famous anime thief met Conan in a 2009 television special and a 2013 crossover film?
Lupin III
Lupin III is the suspect Conan sets out to catch in the film, after a jewel called the Cherry Sapphire is stolen. The movie is a sequel to the earlier TV special.
Q 08In a 2015 Detective Conan film, Kaito Kid announces a heist of famous paintings by which artist?
Vincent van Gogh
Vincent van Gogh painted the seven Sunflowers that the film Sunflowers of Inferno gathers for one exhibition. In its story, one long thought lost in a wartime air raid resurfaces at auction.
Q 09Which Japanese mystery writer gave Shinichi Kudo the surname of an alias built from two authors?
Edogawa Rampo
Edogawa Rampo also created the sleuth Kogoro Akechi, the namesake of Kogoro Mori. His later books gave Akechi a club of boy detectives to lead.
Q 10Which item of Conan's outfit hides the gadget that lets him speak in Kogoro Mori's voice?
Bow tie
Bow tie gadgetry from his neighbour Dr. Agasa lets Conan impersonate anyone's voice. That is how the unconscious Kogoro appears to announce each solution.
Q 11Which accessory worn by Conan fires the tranquilizer darts that knock out Kogoro Mori?
Wristwatch
Wristwatch darts have sedated Kogoro so often that he is famed as a brilliant detective who solves cases in his sleep. The same trick got a clumsy Gunma policeman promoted to inspector.
Q 12Where was Shinichi Kudo on a date with Ran Mori when he slipped away to follow two suspicious men?
A theme park
A theme park date ended when Shinichi left Ran to tail the pair, sure they were up to no good. One of them attacked him and forced an experimental poison on him.
Q 13Ran Mori, who is terrified of horror films, is a regional champion in which martial art?
Karate
Q 21Yusaku Kudo, Shinichi's father and creator of the Night Baron, is famous in which profession?
Novelist
Novelist Yusaku writes detective stories, and his own deductions outshine his son's. He has often helped the police crack real cases.
Q 22Gosho Aoyama cites the samurai films of which director as an influence on Detective Conan?
Akira Kurosawa
Akira Kurosawa sits beside classic detective and gentleman-thief stories among his influences. Aoyama's own twist was to shrink a skilled detective.
Q 23In which city does Shinichi Kudo, briefly back in his teenage body, confess his love to Ran Mori?
London
London is where Shinichi finally tells Ran how he feels while restored to his original form. A prototype antidote lets him change back for a short time.
Karate beat judo and kendo, the only other martial arts Gosho Aoyama knew how to draw, because he thought it was cooler. Ran also captains her school team.
Q 14Heiji Hattori, the rival teenage detective who speaks in a Kansai dialect, comes from which city?
Osaka
Osaka gave Heiji his dialect because Aoyama wanted a rival who spoke nothing like Shinichi Kudo. His editor at the time came from the city and supervised the lines.
Q 15When Kogoro Mori is unavailable, which wealthy friend of Ran does Conan knock out and impersonate?
Sonoko Suzuki
Sonoko Suzuki has been used so often that she sometimes thinks she is a brilliant detective too. She is Ran's best friend and a huge fan of Kaito Kid.
Q 16Kogoro Mori, who is skilled in judo, held which job before he became a private detective?
Police officer
Police officer Kogoro served under Inspector Megure before going private. Gosho Aoyama chose that background because it made stories easy to set up.
Q 17What is the profession of Eri Kisaki, the mother of Ran Mori who lives apart from Kogoro?
Lawyer
Lawyer Eri still wears her wedding ring after ten years apart from Kogoro. She even gave her Russian Blue kitten a name based on his.
Q 18In the Americanized dub released as Case Closed, what first name is given to Shinichi Kudo?
Jimmy
Jimmy Kudo was the dub's choice, and the manga's American publisher adopted the same character names to keep print and screen consistent.
Q 19Kaito Kid, the gentleman thief and master of disguise, usually escapes from the police using what?
A hang glider
A hang glider carries him away after heists staged before large crowds. He looks so much like Shinichi Kudo that he can impersonate him without a mask.
Q 20Which food-loving first-grader is the self-proclaimed leader of the Detective Boys, Conan's club?
Genta Kojima
Genta Kojima can eat more than the rest of the club combined. His voice actor, Wataru Takagi, also plays Detective Takagi, who was named after him in an ad-lib.
Q 24Ai Haibara, creator of the drug APTX 4869, went by which wine code name in the Black Organization?
Sherry
Sherry was the young chemist's code name until she turned against the syndicate and swallowed her own drug. Instead of dying she shrank to a child, as Shinichi Kudo had.
Q 25Which café sits directly below the Mori Detective Agency and employs the kindly Azusa Enomoto?
Café Poirot
Café Poirot is where Kogoro takes his coffee breaks. Azusa sometimes hands him small cases there, mostly about missing mobile phones.
Q 26Why does Inspector Megure of the Tokyo Metropolitan Police always keep his hat on?
It hides an old scar
It hides an old scar from a case twenty years ago involving a woman named Midori, who later became his wife.
Q 27The Fist of Blue Sapphire was the first Conan film set mainly in which other Asian country?
Singapore
Singapore hosts the heist, centred on the Marina Bay Sands. Conan has no passport, so Kaito Kid kidnaps him and brings him along.
Q 28In the film The Phantom of Baker Street, Conan and several other children are trapped inside what?
A virtual reality game
A virtual reality game called Cocoon is seized by an artificial intelligence that threatens to kill the players for real unless one of them survives. Conan's stage features Jack the Ripper.
Q 29The spin-off The Culprit Hanzawa stars which recurring figure from the main Detective Conan series?
The shadowy black silhouette
The shadowy black silhouette stands in for each unidentified culprit in the main series. The spin-off gives him a name, Makoto Hanzawa, and a new life in crime-ridden Beika.
Q 30Which company licensed the Detective Conan anime for North America in 2003 and released it as Case Closed?
Funimation
Funimation gave the cast Americanized names that the manga's publisher later adopted. Its dub premiered on Adult Swim but was discontinued because of low ratings.