Dead Body

This is one of the scary prank call ideas. Call someone and tell them that you owned their house or lived there as a tenant. When they believe you, tell them that you need to tell them something important. You can tell them to listen to them carefully and then say “In some time, the police will be there at your house with a warrant to search your house. Do not let them search behind the wall in the bedroom. Just be careful!” When the person starts getting curious and asks why tell them that “ I have hidden my wife/husband's body there and if the cops find it then you will be a prime suspect for concealing all evidence. I just wanted to tell you so that you can save yourself” Hang up thereafter! You can call back and explain thereafter that this was a joke!