### 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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