Brain Teasers
Which Box Has the Gold?
There are four boxes lined up on a desk from left to right. Which box is the gold in if the two truthful boxes are not next to each other, and the two lying boxes are not next to each other?
Box A: The gold is not in this box
Box B: The gold is in this box
Box C: The gold is in this box
Box D: The gold is in this box
Box A: The gold is not in this box
Box B: The gold is in this box
Box C: The gold is in this box
Box D: The gold is in this box
Answer
If l is lie, and t is truth, the possible patterns for the boxes are: ltlt, and tltl. The gold is in box C because if it wasn't, then box C would be lying. When ever a box is lying, any boxes touching that box would have to be telling the truth. If box B and D were telling the truth, that would be impossible. Therefore, box C is truthful, boxes B & D are lying, and box A is truthful as well.Answer: Box C
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Comments
Good fun. And it made me think. Well done
One of the first ones I got right here!!! I liked it
i got it right when i read it!
i got it
thanks
thanks
I got it.
Good teaser!
Good teaser!
Honestly, this question is always asked here as a 'brain-flexer' in our place, so it turned out to be easy. Good Work.
Actually, the explanation is simpler than you made it. The first box has to be telling the truth, otherwise, the other truth box is lying, so the gold is, indeed, in C. (If the first box is lying, the gold IS in Box A, but that makes all three other boxes liars... see?)
Good teaser.
Good teaser.
I ignored the first box. With three boxes in a row saying they have the gold, only the middle box can be telling the truth.
You don't even need to know what the first box said because it can only have said it didn't have the gold.
You don't even need to know what the first box said because it can only have said it didn't have the gold.
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