InterviewBit Problems   Prisoners and Poison : Unsolved

About the Prisoners and Poison : Unsolved category (1)
Incomplete information provided (2)
Binary Representation Approach (1)
Using same prisoner to taste all till he dies (3)
The solution of the problem is wrong (6)
Correct answer is 8 (2)
Missing information (1)
What about a solution where you use 13 prisoners, and exactly 2 dies? (1)
I think we could kill only one prisoner (3)
Another way of solution (1)
Can we track time at which a prisoner drinks? (1)
I don't know but I thought it this way (3)