Yesla I love ghost stories,
Got my own fair share of encounters also. Just thought I'll contribute~

Story 1
This happened when I was still in primary school. Last time in the mornings before school, I'll always try to catch some sleep on the sofa while waiting to use the toilet. One day, half awake, I noticed an apparition at the window. It got long thin fingers like branches and a balloon like head. It was waving and waving and waving its hand. I asked my parents if they see anything at the window (i didnt tell them what i'm seeing) but they say no. I was too tired to care and went back to sleep.
Some time later, a span of few weeks or 1~2 months (I forgot), the same apparition showed up again. So this time I asked my bro if he can see, firstly he say cant, but I was unhappy because nobody believed me so I furiously asked him to look properly at the window, so he looked lorr, then got frightened then ask me back what is it (how i suppose to know la?), but since I saw it before, and wasn't as scared, I told him its just some random objects blowing in the wind, but he still scared. So what I did is I waved at the apparition to prove its nothing to be afraid of, my bro laughed and joined me waving together. After waving for a short while, the apparition disappear and we continue our morning as usual. Later when went out the house only I noticed that they isn't any objects anywhere nearby that will cast a shadow like that and there wasn't any wind in the first place.

Story 2
Primary time also. Last time me and a couple of friend like main digging at a vacant lot in my school. We would dig around pipes pretending they were dinosaur bones. So once I was digging alone, my friends duno disappear wer, and I dug out a glass bottle with a hair threaded through a rusty nail. I read enough true singapore ghost stories to know what is it so I immediately throw it as far as I can (it hantam ppl car and broke V^_^).
So years later, they built a classroom on that lot, and yeala its rumored to be haunted. I aso feel seram sejuk when go in alone during recess. Once during our taekwando class at night, I noticed something white, like a light glare on the class windows, I go ask 2 of my seniors come come see lor, again at first they cant see anything, but i insist they look properly, then one of them finally said, 'eh yala, that looks like a __' I ran away screaming.

Story 3
2 years ago. I used to jog early in the mornings weekly (like 5am, when pipu go solat) because later that day got class then cant make it in time liao (abit crazy yes), anyway so I was jogging a stretch of road la when ahead I noticed a motorbike with two pipu in front at the small lorong like waiting to come out to the main road. When nearing them the time, first I see the woman sitting behind, a melei beauty la, she smiled at me n i smiled back though didnt say hi, then i see the rider, an indian man with something like white chalk covering his entire face and arms. He stared straight ahead at the road didnt look up at me so I feel weird la becoz I guess I must be a strange sight to them (actually they look more strange than me lol), I jogged ahead and turned back to check if hantu folo me anot, they still there no move. I jogged faster abit. I nvr jog early in the mornings liao after tat.

Story 4
Few weeks ago. I think this one is a dream, I cant tell. Don't hold me to this story, but it was real enough for me. I was sleeping in my hostel room when I suddenly heard knocking on the door. I was more asleep than awake to layan, so I didn't. Suddenly I was hugged from behind, for the first few seconds I thought it was my dad, becoz he likes to do tat sometimes, hug me when i sleep. Then i realized wadafak?! my dad? mpossibru! I quickly struggle to throw the arm off, but it was strong, pinning me to the bed and then with its other hand he grab mah balls ~.~ (this one felt real) I managed to turn behind to at face it and I saw this orang minyak like face menggilai. I struggled somemore and finally managed to throw him off. It bolted out the door and me furious, ran after it. I can't remember what happened next but when I woke up and asked about the knocking yesterday night he said got, but tats becoz our hsemate got locked out of his room becoz the other hsemate (his roommate) kunci pintu and he no key. But according to him I was sleeping so I guess this one might be a dream after all. But the ball grab felt real and painful I tell you.