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 Guess my Number (Posted on 2004-12-20)
The Mad Hatter poured Alice another cup of tea and set the teapot down.

"May I please have one of those biscuits?" asked Alice rather timedly, rather taken aback by the sight of her present company.

"A biscuit?? Oh, I don't know. Those are the March Hare's special un-birthday biscuits, don't you know. Can she have a biscuit, March ?" asked the Hatter.

"A biscuit?? One of mine? Hurmph. Ok, I'm thinking of an integer from one to three (inclusive). If you get it, you can have a biscuit. If not, I'm afraid you'll just have to leave" said the March Hare, leaning back.

"Oh goodness, I don't know" said Alice worriedly. "Couldn't I just get a hint?"

"Oh, all right..." the March Hare sighed. "You get to ask me one yes-or-no question, that's all"

Alice thought for a moment, then smiled, knowing exactly what to ask.

What question should Alice ask?

 See The Solution Submitted by Sam Rating: 3.7647 (17 votes)

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 re: Another simpler solution? | Comment 29 of 32 |
(In reply to Another simpler solution? by Erik O.)

This cannot work. Since the question can only be yes or no how can March respond to that question if the number is 2. He cannot say that is undetermined by mathematics because that would not be a yes or no answer. Therefore the only possible way your answer could work is if the number he was thinking of was a 1 or a 3.
 Posted by james on 2005-02-22 01:42:36

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