After a slow morning wandering the castle and the grounds while trying to decipher her father's letter, Lily decided to return to the common room to get her stuff for lunch. She had heard about the issues with dementors being seen so just as a precaution, the fifth year had tucked her wand under her headband and behind her ear so that it was easily accessible.

As she stood at the knocker, she stopped to listen to the riddle and try to solve it.
I open wide and tight I shut, sharp am I and paper-cut fingers too, so do take care, I'm good and bad, so best beware...

After pausing for several moments, the redheaded claw decided to take a seat and try to puzzle the riddle out, pulling out some of her favorite candy as she thought about it.