This riddle does not test your mathematical skills but how well you notice information that is missing. I find that the more you read this riddle, the closer you will get to the answer, every time.
There was a girl who was killed in a park. The police came and tried to figure out who killed her. So they looked into her pocket and found her cellphone. The most recent call was her boyfriend, so the police called him. They said," Your girlfriend has been killed please come as fast as you can." Ten minutes later the boyfriend came and he was under arrest right away.
How did the police know that her boyfriend was the murderer? Press ctrl + A to see hint
hint: think about the information that is missing....
