Can you break the detective’s code and find the criminal’s name?

The correct answer to this question isBill is the criminal. The numbers "710 57735 34 5508 51 7718" are vital to solving this riddle. The numbers need to be read upside down to reveal the criminal. When reading upside down, the numbers turn into the statement "Bill is boss. He sells oil., which reveals Bill as the criminal.

Riddles are puzzles, which entertain the brain. This riddle is a medium, in between the easy and hard ones. Using numbers in riddles make the answer less obvious, but can give the solver an "aha" moment when the answer is revealed.