Detective Conan, also known as Shinichi Kudo, is often considered one of the smartest detectives in the world of fiction. His deductive reasoning, keen observation skills, and ability to solve complex cases make him a formidable detective. However, there are many other fictional detectives who are also considered highly intelligent, such as Sherlock Holmes and Hercule Poirot. Ultimately, the title of "smartest detective" is subjective and can vary depending on individual opinions and the specific criteria used to measure intelligence. **

My favorite detective in Detective Conan is Heiji Hattori. He is a high school detective from Osaka and is known for his sharp deductive skills and quick thinking. He is also a close friend and rival of the main character, Shinichi Kudo. Heiji's determination and strong sense of justice make him a compelling and likable character in the series. **

No, the Detective Boys in Detective Conan do not grow up. The group consists of elementary school students who assist the main character, Conan Edogawa, in solving various cases. Despite the passage of time in the series, the Detective Boys remain the same age and continue to be involved in new mysteries and adventures. **

In the Detective Conan series, the Detective Boys are a group of young children who often find themselves involved in solving mysteries alongside the main character, Conan Edogawa. They are usually found in their usual hangout spots, such as the local park or the Mouri Detective Agency. Conan often seeks out the Detective Boys when he needs their help in solving a case or when they inadvertently become involved in a mystery. Additionally, the Detective Boys often stumble upon mysteries themselves, drawing Conan's attention to the case at hand. **

The age at which one can become a detective or chief detective varies depending on the specific requirements of the law enforcement agency or organization. In many cases, individuals must first gain experience as a police officer before being eligible for promotion to detective, which typically requires several years of service. As for becoming a chief detective, this usually requires even more experience and may also involve additional education and training. Overall, the age at which one can become a detective or chief detective is determined by the specific career path and qualifications required by the law enforcement agency. **

The role of a detective in a detective novel is to solve a mystery or crime by using their intelligence, observation skills, and deductive reasoning. They are often the central character in the story and are tasked with unraveling the complexities of the case, uncovering clues, and identifying the perpetrator. The detective's role is to engage the reader in the process of solving the mystery, often through their unique personality, methods, and interactions with other characters. Ultimately, the detective's role is to bring closure to the mystery and restore order to the world of the novel. **

Office supplies and stationery are often on sale at the turn of the year due to the end of the fiscal year for many businesses and the need to clear out old inventory. However, it is not guaranteed that they will always be on sale at this time. The availability of sales on office supplies and stationery can vary depending on the retailer and their specific sales strategies. It's always a good idea to keep an eye out for sales and promotions, especially during the holiday season and the start of the new year. **

Detective characteristics typically include being observant, analytical, detail-oriented, and possessing good problem-solving skills. Detectives must have a keen eye for detail and be able to connect seemingly unrelated pieces of information to solve a case. They also need to have strong communication skills to effectively interview witnesses and suspects. Additionally, detectives must be persistent and have a strong sense of determination to see a case through to its conclusion. **