Archive for math puzzles

CA. Cut the Cake!

How to satisfy the most jealous of triplets?

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BZ. Two Teams

Twenty three people split into two teams of eleven & one ref; no matter how they split, the teams have the same total weight! Can the players themselves be different weights?

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BY. Guests at a Party

A short, but tricky puzzle: how many guests must you invite before you can be sure that there are at least three mutual acquaintances or three mutual strangers?

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BV. 9’s Strike Again

A beginner’s guide to mind-reading!

We explain the solution to last week’s puzzle.

Read the rest of this entry »

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BU. The Online Mind Reader

The mysterious oracle at www.flashpsychic.com, and other enigmas!

How does the oracle work?

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BS. Aha! Escape!

Dozens of listeners sent us solutions, mercifully freeing us from this 50x50x50' box.

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BR. We Don’t Know the Way Out!

This puzzle has us stumped! How do you escape this diabolical trap?

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BQ. The Smuggler is Paid

Dennis Shasha answers his puzzle.

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BP. The Smuggler’s Fee

Dennis Shasha, author of the “Puzzler's Elusion” gives us a new puzzle.

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BO. When did you say?

The solution to last week’s question, and a very easy puzzle.

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