Yes, they do work, and there are certain things you can learn to protect yourselves, but I malas want to explain. The pantang larangs that the old people tell us, like go into hutan don't do certain things has merits in them too.

There are also a lot of fake talisman out there, and I think TS would be able to tell you your talisman got power or no power just by looking. I've seen buddhist statues being taken over by spirits because the statue was hollow already and people still keep praying to it. So they just go in reside there, shiok because got people give offerings.

oh my god.. I'm a normal person. not an exorcist. I could see them. that's about it.
if captured at the right time sometimes camera are able to capture something but I'm not sure if it's intentionally done by these beings or not. secondly, I can't see the being/creatures on a video. I'll just see the recorded pixels. so nothing will show.

lastly, some of these creatures could appear themselves in tv screens in front of me. sort of like moving about in  the scene of the movie. if you're interested in that.
I seriously don't know. I have to stress that I'm not an expert in anything. I'm just describing what I see. that's about it.

haha. awesome question. he's much braver than I am. or crazier... he likes to act though in front of them. until the entities get lazy to entertain him. since he's not afraid at all. no fear. 0% 
right. hm.. without delving into spiritual or religious things.. the only thing I could say is not to drive late at night. especially on lonely roads. i know, generic advice... but I had a bad experience here even in malaysia. mischievous creatures will sort of draw you in a trance. so you'll see a lady in front of you and a sort of old building structures. kind of eerie. many are not updated so that's the best they could make you see. they'll tell you to drive over a cliff, etc.. generic story, but it's true..