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Da Vinci's Secret Letter



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Five. Each question can cut the number of possible candidates in half.

That is the idea but with what question will half them ..

1. Is the secret letter belong to half of them? True!

2. Is the secret letter belong to half of the half it belongs to? False...6 & 7 conflict


4. Does it belong to half of the half of that half of that half ? True 2/4

5. Does it belong to 1 of the two? False .. the secret letter is the remaining letter that remains unknown.

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