I'm looking for a book I read when I was younger that I used to absolutely love (2000 - 2010); I'm pretty sure it was a collection of short stories. I grew up in the UK, and will most likely have read this in a school library. I can only remember vague details about two of the stories:
First story: A man wins the lottery, then he decides to start giving away free money. He starts giving people more and more each time as they are more and more polite/grateful. As the line of people lining up grows so does the amount he gives, ending up at like $200 each time. People are camping for days just to get the money. When he eventually runs out the people who have been waiting for days lynch him by drowning in a well(?).
Second story: A kid goes to an abandoned house and meets a ghost who tries to scare him by turning things inside out (a sausage then a watermelon?). Unfortunately for the ghost this kid is fearless, literally never scared. The ghost must pass a scariness exam before a ghost inspector to be allowed to leave the house (or move on from being a ghost?). The story ends when the ghost gets super desperate and says the incantation for turning the kid inside out (incantation is something like BLAN-TANG-object-KABLOOIE).