Books where the protagonist/ villain is very intelligent

Recently been meaning to get back into reading from watching tv. Could be crime/murder mystery, thriller, adventure, survival or other similar genres. I enjoy seeing how characters use critical thinking to solve near impossible problems, but like in a fun and engaging way . Previous series/movies ive enjoyed is peaky blinders, death note, a quite place. They all show really unique problems that require unique solutions. Examples of other books ive read and enjoyed was murder on the orient express, hannibal lecter series, and a few other survival/detective short stories. Length of book doesnt matter too much.