A couple of years ago we threw out our old armchairs and sofas for some new ones which we received from a family friend of ours. This new set was completely normal; nothing creepy about them and they didn't seem particularly old or anything like that.
We placed them in our living room so that when you enter the armchair is a couple of feet in front of you and the back is facing you at a slight angle so you can still see some of the left arm rest (sorry for the bad explanation).
Every time I used to enter the living room I used to see a silhouette of a person sitting on that arm chair. The silhouette wasn't dark or like a shadow, it was just like a faint white outline of something that looked like an (old?) man with short hair. It used to creep me out a bit but didn't stop me from entering and staying in the living room, as I wasn't completely freaked out or feeling threatened and I only ever saw that silhouette when entering the living room (I never saw any full apparitions/heard anything that seemed to match that silhouette at all).
I was probably around 10 or 11 at the time we received this arm chair so it may have been an overactive imagination (I was very interested in the paranormal at the time) or maybe even a trick of the light. However, I used to see the silhouette every time I entered the living room whether it was day or night or light or dark in the room which makes me think perhaps a family member of the friends who gave it to us died in that chair, was attached to it or just liked that particular armchair.
I know this story isn't the most interesting of them all and we have since gotten rid of that set for a new one, but I always still wonder if what I saw was an actual ghost/spirit or just a trick of the light/an overactive imagination. Thanks for reading and any comments regarding what this could have been are appreciated.