From what can be seen of the flower, I would say that is it a Passiflora species. However, the flora of Malaysia is way out of my area so I can't say what species it might be.

There are hundreds, if not thousands, of Rhododendrons: species, hybrids and cultivars. Unless you know your neighbours have exactly the same plant comparisons are not meaningful. Apart from which yours might just be younger.

Hard to say, it looks like a sedeveria or graptoveria of some kind. Very pretty though! Luckily, this is all you really need to know in order to care for it. I would google both types until you find a match. Obnoxiously well draining potting medium, protection from frost, lots of sunlight ought to do it. From the looks of the rosy tips & compact rosettes, it's already accustomed to a good bit of sun, this is GREAT!! Good luck with it 8D

I think it looks more like Hydrangea paniculata aka panicled hydrangea, but I agree with GG48 that it is a hydrangea. If you post a photo or two once the flower buds open, you may get more specific info.