Wow most of the videos are sound psychology so the best thing to do is turn of the sound. The images won't scare you if you can't hear the eerie music.

About 5... I think somebody rigs the dolls.

Business is business.
The 1st one is kinda intriguing though... The picture kinda changed stance a bit. Maybe it was just the reaction of starring at the picture hardly blinking but it is cool in its way...
Just remember. Turn off the sounds.