dr_
  • Member for 6 years, 4 months
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Knights and Knaves: What does C say?
14 votes

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Which one is the true statement?
12 votes

This is the line of thought I followed: Statement #3 As a consequence, If #4 were true, then #2 must be true (by exclusion), but this would imply that #4 itself is false. Then, If #5 were true, ...

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A house facing North and South, but not other directions
3 votes

Build this, exactly centered on the North (resp. South) Pole: All inner windows face North (resp. South), all outer ones face South (resp. North). The house is square and symmetrical; the fourth ...

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A Palindrome Challenge
2 votes

Here's the answer for a non-English language: (literally: "abc", backwards, will result in "cba").

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Flashlight and 8 batteries
0 votes

This is another way of wording the solution:

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Alice, Bob and Carol, and many cookies
0 votes

The number of cookies a person receives is halved at each round, until eventually it becomes 1. At this time the cookie can't be shared anymore and must be eaten. So, for the process to continue ...

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