This is not something really big, but it's just weird.
I studied in college in a city far away from my hometown and I lived alone in boarding house. I only had 1 pen, and never cared about buying another one until the ink ran out. One day I lost my one and only pen, then I searched it everywhere in my room, in the desk, in the drawer, in binder, in dustbin, among the papers, below the bed etc but still couldn't find it. Then time passed, I haven't replaced the missing pen, and I went to college at usual, always locking my room before going.
One day I just reached home, unlocking my room, and suddenly my missing pen was there, in the middle above the desk.
Weird, searched it everywhere, couldn't find it but suddenly it appeared again in a very visible place.
Not sure if this is connected but year later I found out (from a friend that can see it) that there's some children like ghosts dwelling in stair right in front of my room.