The riddle is solved by knowing that there is only one person left in the garden and that is you.
We are told that there were a total of 34 people in the yard. We do not know if these people are in the garden or somewhere around the yard. The next information we have is that a total of 30 persons were killed.
Since you killed them in the garden, the others may still be lurking somewhere in the yard thus there is only one person left in the garden and that is you.
Learn more about solving a riddle:https://brainly.com/question/25063408
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