I always liked fairy tales involving, well, fairies, especially people getting caught up in fairy traps or tricks and only escaping through loopholes in fairy law, which tended to be a mix of "exact wording" and "deliberately vague so we can be as dickish as possible". Or, conversely, getting screwed over due to those very aspects of fairy law. One that always stuck in my head was a man's wife getting stolen by fairies, who promised they'd return her if he threw a jug of milk over her when she rode by the house at midnight--but it had to be milk, and if anything else was in the jug they'd keep her forever. He dutifully waited until midnight with a jug of milk, and when his wife came riding past on a fairy horse he threw the jug over her. However, at that moment, the fairies made it rain, and a single drop of rain got into the jug. The fairies declared the deal void and kept the wife.
It's probably for similar reasons that Loki was one of my favourite Norse gods even before he was Tom Hiddleston; stories about Loki were all about clever tricks and riddles and magic rather than fixing all problems by smashing them with Mjolnir.
Also, if it counts, A Midsummer Night's Dream is my favourite of Shakespeare's comedies, largely because of Puck.