The florist has just been murdered, and you, a freelance detective called on to the case by the police, arrive at the crime scene. Three suspects are present in the flower shop: the florist's assistant, the boss of the oil shop next door, and a person who was caught running away from the crime scene shortly after the victim's scream was heard.

On the floor is a blood-stricken ripped piece of paper with the numbers 550971051 in the florist's handwriting.

Who was the murderer?


2 Answers 2


The answer is:

The boss of the oil shop next door.


550971051 flipped upside down and reversed looks like ISOILGOSS $\rightarrow$ I sell gas

I've heard this puzzle somwhere before, can't remember where, I'm quite sure this is the answer though

  • $\begingroup$ Your answer and method is correct, but 550971051 upside-down being interpreted as 'I sell gas' is a bit vague. Anyways, I'm going to mark your answer as correct because you have both the answer and the process right $\endgroup$
    – user38449
    Jul 21, 2017 at 4:40
  • $\begingroup$ Thanks! I think I heard this riddle with the murderer being a gas seller instead of oil boss (both meaning similar), so I just wrote what I remember, not realizing that ISOIL6OSS can have 6 $\rightarrow$ b instead of G $\endgroup$
    – bolt997
    Jul 21, 2017 at 4:43
  • 1
    $\begingroup$ Rolled Back Edit -- Edit fundamentally changes the answer as given. Also, correct interpretation appears in @valuable_asset 's answer. $\endgroup$ Apr 27, 2022 at 19:30

Should be

the oil guy


550971051 inverted is IS OIL BOSS (15 01L b055)

  • $\begingroup$ Good job on the answer, but the correct way is to read the number upside down. You can try that, I guess :) $\endgroup$
    – user38449
    Jul 21, 2017 at 4:43
  • 2
    $\begingroup$ But the answer is derived from reading the number upside down already. $\endgroup$ Jul 21, 2017 at 4:52
  • 3
    $\begingroup$ This should be the correct answer. The world is unfair sometimes. @Non-Puzzler $\endgroup$ Jul 21, 2017 at 14:14

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