For Sherlock Holmes, it's his power of observation. He notices things others don't. For example, the type of mud on a shoe can tell him where a person has been. Hermione Granger is intelligent because she reads a lot and has a thirst for knowledge. She studies hard and can recall facts easily. Dr. Strange has spent years studying the mystic arts, which gives him his intelligence in that area.
Well, take Moriarty. His intelligence lies in his ability to manipulate people and situations. He is a master strategist. He can anticipate the moves of others, especially Sherlock Holmes. Einstein in fictional portrayals has his intelligence in his ability to think outside the box in the realm of science. He can question established theories and come up with new ones. And in the case of Hermione again, her intelligence is also shown in her ability to adapt knowledge to different situations, like using spells she learned in class to get out of dangerous magical situations.
A character's intelligence in fiction can be measured by their knowledge base. Professor X from the X - Men has extensive knowledge of genetics, mutants, and telepathy. He uses this knowledge to lead the X - Men and protect mutants. Also, adaptability is important. A smart character like Katniss Everdeen in 'The Hunger Games' can quickly adapt to the changing and dangerous situations in the arena, using her wits and survival skills, which also indicates her intelligence.
Innovation is another aspect. Tony Stark from the Marvel universe is a great example. He invents amazing technology like the Iron Man suit. His ability to think outside the box and create solutions that no one else has thought of, whether it's for combat or for other scientific purposes, makes him a strong contender for being one of the smartest in fiction. He also has the business acumen to run his company and use its resources for his inventions.
Observation skills. Detectives like Sherlock Holmes can notice the tiniest details that others miss. A single scratch on a table or a strange mark on a piece of clothing can be a crucial clue for them.
Their intelligence makes them dangerous because they can anticipate the moves of their opponents. For example, a smart villain like Hannibal Lecter in 'The Silence of the Lambs' can analyze people's motives and weaknesses just by observing them. He can use this knowledge to manipulate and outwit those who are trying to catch him.
Sherlock Holmes. He is extremely intelligent, with his remarkable powers of deduction. He can observe the tiniest details and use them to solve the most complex mysteries. His mind is like a well - oiled machine, constantly analyzing and making connections that others miss.
I think '1984' by George Orwell is also among the smartest. It warns us about the dangers of totalitarianism in a very intelligent way. Orwell creates a dystopian world that makes readers think about the importance of freedom, privacy, and the power of language. The concepts in this novel are so thought - provoking that it still holds great relevance today.
L from 'Death Note' is extremely intelligent. He is able to track down the elusive Kira using his brilliant analytical skills. He can make connections between seemingly unrelated events and people. He goes to great lengths to gather evidence and is always thinking several steps ahead of his opponents.
Lex Luthor from Superman stories is highly intelligent. He's a brilliant scientist and businessman. He uses his intellect to try and defeat Superman, often coming up with complex plans that involve not just brute force but also psychological warfare and manipulation of public opinion against the Man of Steel.
Well, it depends on your definition of smart. But if we're talking about quick thinking and problem-solving skills, characters like Gadget from Inspector Gadget or Phineas from Phineas and Ferb come to mind. They always manage to find ingenious solutions to difficult situations.