If a door binds open it grasp the knob and lift up to see if a hinge is loose.
Stiffen door hinges.
Simple quick and works like a.
You can use olive oil butter paraffin candles wd 40 spray petroleum jelly or simply a bar of bath soap.
The tighter that you tighten the set screws the more resistance.
If the hinge screws have been loose for only a short time you may need to tighten them with a screwdriver.
Put the pin back in and it will stop the door from swinging.
Remove the top or middle hinge pin and use a hammer to bend it just slightly.
Drill and tap a hole on each of the knuckle of the hinge so that you can screw a couple set screws in so that it pokes the hinge pin.
Open the door grasp it by the lock edge and move it up and down.
Applying some sort of lubricating oil on the door hinge usually fixes the door squeak right away.
If one is loose remove two or more screws and try driving in longer screws.
On the latch side a door is cut at a slight bevel to make it easier to close.
Reinstall it and check the result.
If you encounter movement at the hinge screws they need to be retightened.