Riddle movies verses sci-fi movies

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I love watching movies .....it doesn't matter to me it is old or new, dramtic, comedy, romantic or sensitive, sci-fi or horror...... there is one more category which riddle movies in which actor tries to solve some kind of riddle .....for example .....Sherlock holmes, National treasure, Paycheck.....these are like riddle movies in which actor tries to solve the riddle and goes one place to another ..... what is your opinion on this??? can you name some more riddle movies names???