45

Answer: Reasoning:


21

The person telling the truth is: because: and consequently, the killer is:


8

I took the practical approach and came up with a strategy that could be optimal (I have not tried to prove it). In the worst case scenario it takes: I made a drawing to show my strategy. The yellow squares are the rooms the police officer looks into that night, the black squares are rooms in which the thief logically cannot be.


7

Note: Answer:


7

Partial currently:


7

This is a very nice 2-dimensional variation of this question.


6

Who tells the truth is: because


6

The drink is: Because the other things are: Smooth dance: Ball sport: Country's Capital: Month: Which are:


4

Solution: Why?


3

I think the answer is because


3

This answer's a little eccentric, but bear with me. (Warning: this answer would fit a lateral-thinking puzzle, but since it is not explicitly a non-lateral-thinking puzzle, just treat this as light-hearted entertainment.) There is no killer.


2

I was going to post a different answer, only to realize it was the same as Magma's. So I had to find a new one:


2



2

The person telling the truth is because Since there can only be one person telling the truth, and we know that is telling the truth, and is therefore the killer.


2

As an alternate line of thinking: Therefore This means


2

Therefore:


1

As others have said, the person telling the truth is Here's another approach to figuring this out: From this we conclude (since we know there is only one truth-teller) that:


1

This is probably not the minimum, but it is an improvement to the answer from @Sriotchilism O'Zaic: with the sizes In 9 parts: In 8 parts: In 7 parts: In 6 parts: In 5 parts: I used the $18$ pieces from the linked puzzle as my starting point and


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