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Guess my Number (Posted on 2004-12-20) Difficulty: 2 of 5
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)

Comments: ( Back to comment list | You must be logged in to post comments.)
re(2): Independent solution | Comment 10 of 32 |
(In reply to re: Independent solution by Fletch)

Yes, my solution does work.  If the answer is one, how does the March hare know that Alice is holding 5 fingers up behind her back?  She could be holding 4, 3, 2, 1, or none.  No matter how many fingers she is holding up, the March hare cannot confidently say that she is holding four more fingers up than the number.

Read my solution more carefully.


  Posted by Tristan on 2004-12-21 05:41:02
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