¿Por qué la tendrán encerrada este lugar?
Why would they keep her locked up in this place?
¡Para ya!
Stop it (now)!
¡Déjalo de una vez!
Stop it / Forget it / Give it up once and for all!
¿Eres de verdad? Lo suficiente.
Are you real? Real enough. (I wonder in which context you could use this though hahaha. Maybe when you see a ghost?)
If you have any questions, feel free to ask!