The trunk latch is bent and the trunk will not match the receiver on 92 nissan sentra

SOURCE: trunk leaking

I'm not sure how you know the weatherstrip isn't leaking,here's what i would do.With a trusted helper,get in the trunk and latch it.Have the helper spray the entire trunk area with a garden hose while you watch for any water leaks.That's the best way to check the weatherstrip for leaks,and it is likely that's where the leak is coming from.

SOURCE: My trunk won't open.

fold down back seat and manually release the latch them inspect lock for trunk

SOURCE: can not open trunk

There is a "cancel" button inside the trunk that makes the trunk lever release inoperable. In this mode you can only use the key to open the trunk. Open the trunk with the key, look around the locking mechanism and slide the button.

SOURCE: trunk wont latch

you must adjust the trunk latch for this to work properly,up or down.

SOURCE: Nissan sentra 2006 My trunk wont open && I

does the key turn the trunk lock?if not theres one issue right there.the other may be that the valet lever on trunk latch assy. may have inadvertantly been engaged if deck lid was slammed closed.the release solenoid will make noise when activated by fob or lever in car but because of valet being engaged cannot release latch.does key unlock glovebox?if not this may also be a valet key cut.contact nissan dealer to cut regular key.ive seen the slamming the deck lid scenario a million times as the valet lever takes hardly any effort to engage.good luck and let me know how you make out.