Today's Mystery.
A sealed chamber, locked from the inside. No windows, no hidden passages. Yet each morning, a fresh white rose appears on the table. The room has been sealed for seventeen years. The roses are always in bloom.
The lock mechanism shows no signs of tampering. Dust on the floor is undisturbed except around the table.
The roses contain no seeds. Botanical analysis reveals they match no known cultivar.
Temperature inside the room is consistently 4 degrees warmer than the surrounding building.