My mum used to live in a house that had one room that was always cold, no matter how hot it was outside or in the rest of the house. She always says that she used to hear children laughing and marbles rolling in there. She also told me once (I don't remember if it was the same house or the one we used to live in) that a mug was thrown across the kitchen by nothing. My sister lives in our old house now and said a few years ago that she saw/heard one of our old cats who'd passed a few years before running in the hallway.
I live next to a pub that's supposedly haunted. When I was a kid some of my friends claimed they saw a ghost in the toilets and when we told the landlord he agreed and said that there was a ghost that lived in the pub. In hindsight it was probably just him going along with it and entertaining us. Though now I think about it, once when I was eating there I saw a man go into the toilet and come back pretty shaken, he said something to his girlfriend and they left straight away, which I suppose is odd. My dog hated walking past the entrance, too. We went past it on walks and everytime she'd try and pull away from it, once she pulled so hard she yanked the leash from my hand and crossed the road to be away from the pub. Kinda strange when you consider that dogs are supposed to be sensitive to ghosts, or whatever.