In the Sorcerer's stone, there are 7 challenges to repersent the 7 books! Fluffy, the three headed dog, repersents the beginning and the beginning of the friendship between the three kids, Harry, Hermoine, and Ron.The devil snare is defined as snake-like. This represents the 2nd book with the basalisk snake. The winged keys repersent the third book; freeing Sirius from Azkaban. Also, if you say winged keys fast, it sounds like "Winky", the house elf from the third book! The 4th challenge is the giant wizard chess. Since they are "battling" against the opposing color, it is supposed to repersent the Triwizard Tournament, from the 4th book! For the 5th book, it's supposed to be the troll, but I dont know how it connects to the 5th book. The 6th challenge is the potions. Potions repersent the 6th book because potions are a big part of book 6. The duel with Quirrel repersents the 7th book because it's like the big duel at the very end, the final battle.
So, those are a few things you might of not known about Harry Potter and the Sorcerer's Stone! By, and hope you enjoyed!