Hermit
Auto-translated
My apologies, I didn't phrase it accurately. Here's a correction: the poison will kill the condemned person within exactly 12 hours, but the onset of its effects can vary, with a maximum delay of 12 hours, and you need to reliably find the poisoned tank. It doesn't necessarily have to be 12 hours, it could be sooner, but definitely no more than 12 hours. I apologize for providing an incorrect condition that misled you regarding the method of solving the puzzle... :(
Added 9 minutes later
So, is it possible to identify which of the 240 tanks is poisoned?
Added 9 minutes later
So, is it possible to identify which of the 240 tanks is poisoned?
Всё не так плохо как Вы думаете. Всё намного хуже!