$[$ Mathematical logic (miscellaneous).]

In Wonderland, an investigation was being conducted regarding a stolen broth. At the trial, the March Hare stated that the Broth was stolen by the Bolvan. Sonia and Bolvan also gave testimonies, but no one remembered what they said, and the record was washed away by Alice's tears. During the court proceedings, it was revealed that the broth was stolen by only one of the defendants and that only he gave truthful testimony. So who stole the broth?

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Think about why the March Hare cannot be the thief.

## Solution

The March Hare cannot be the thief because the thief told the truth, while the Hare, in this case, lied. The thief cannot be Bolvan, because in this case, the Hare told the truth, and only the thief told the truth. Therefore, the thief is Sonya.

## Answer

The broth was stolen by Sonya.