MUST READ - Who all believe in ghosts?

Do you have ever invited a ghost ??? I have heard people who often invite good spirits through Ouija Board. Are you one of them? Obviously, it's not in your hands that either good or evil spirit will turn up. I have personally not experienced anything like that. But my friends and family shares a lot of experiences about goos and evil spirits with me. Let me share one of them....as you all know I am from engineering background...my friends use to sit in a room at night and they call spirits through Ouija Board just to know a 10 mark question and they told me that this question would come...in our exam tomorrow for sure..but I said are you crazy ...this question will not come...I was wrong it came and I was in trauma...and they did same in every exam and they used to tell me a 10 mark question before every exam and that questions actually came..I was shocked and I actually start believing in that practice but I personally never wanted to be a part of that practice as it scares me...