I never experienced any kind of activities mentioned above. But I will not deny it either.

NepaliBabu,
why don't you believe in those claims?
is that because it is not proved by science yet?
or you  do not believe what you have not seen/experienced?

just wanted to hear your opinion.

I don't think it is the education that makes you believe or not believe in supenatural//paranormal things, it is your own critical thinking that determines the side you choose.