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Situation puzzles are often referred to as lateral thinking puzzles or "yes/no" puzzles.

Situation puzzles are usually played in a group, with one person hosting the puzzle and the others asking questions which can only be answered with a "yes" or "no" answer. Depending upon the settings and level of difficulty, other answers, hints or simple explanations of why the answer is yes or no, may be considered acceptable. The puzzle is solved when one of the players is able to recite the narrative the host had in mind, in particular explaining whatever aspect of the initial scenario was puzzling.

These puzzles are inexact and many puzzle statements have more than one possible fitting answer. The goal however is to find out the story as the host has it in mind. Critical thinking and reading, logical thinking, as well as lateral thinking may all be required to solve a situation puzzle. The term lateral thinking was coined by Edward De Bono to denote a creative problem-solving style that involves looking at the given situation from unexpected angles, and is typically necessary to the solution of situation puzzles. The term lateral thinking puzzle has been popularised for this type of puzzle by Paul Sloane who has written many books of such puzzles. This term is also used in the MindTrap series of board games, which contain a large number of situation puzzles.

[edit] Example

One of the most famous situation puzzles is told similar to this:

A man walks into a bar, and asks the bartender for a drink of water. The bartender pulls out a gun, points it at the man, and cocks it. The man says "Thank you" and leaves. What happened?

The question and answer segment might go something like this.

1. Question: Could the bartender hear him? Answer: Yes
2. Question: Was the bartender angry for some reason? A: No
3. Question: Was the gun a water pistol? A: No
4. Question: Did they know each other from before? A: No (or: "irrelevant" since either way it does not affect the outcome)
5. Question: Was the man's "Thank you" sarcastic? A: No (or with a small hint: "No, he was genuinely grateful for some reason")
6. Question: Did the man ask for water in an offensive way? A: No
7. Question: Did the man ask for water in some strange way? A: Yes

Eventually the questions lead up to the conclusion that the man had the hiccups, and that his reason for requesting a drink of water was not to quench his thirst but to cure his hiccups. The bartender realized this and chose instead to cure the hiccups by frightening the man with the gun. Once the man realized that his hiccups were gone, he no longer needed a drink of water, gratefully thanked the bartender, and left.

[edit] Terminology

• Yope is a word devised to answer a question with yes and no simultaneously. You can think of it as an answer saying Yes, but ... and No, but ... at the same time. This would be used when it would be misleading to give a simple "yes" or "no" answer to the player's question.
• N/a (or stating "irrelevant") is used when a question is not applicable to the current situation or a when a "yes" or "no" answer would not provide any usable information to solving the puzzle.
• Irrelevant, but assume yes is used when the situation is the same regardless of what the correct answer to the question is, but assuming one direction will make further questioning easier or the situation more likely. An example question that might have this answer from the puzzle above is: "Was the bartender human?"

[edit] Further reading

• Edward De Bono, Lateral Thinking : Creativity Step by Step, Harper & Row, 1973, trade paperback, 300 pages, ISBN 0-06-090325-2
• Paul Sloane, Lateral Thinking Puzzlers, Sterling Publishing, 1991, ISBN 0806982276
• Paul Sloane, The Leader's Guide to Lateral Thinking Skills, Kogan Page, 2003, paperback, 186 pages, ISBN 0-7494-4002-3
• Paul Sloane and Des MacHale, Outstanding Lateral Thinking Puzzles, Sterling Publishing, 2005, ISBN 1402703805
• Paul Sloane and Des MacHale, Cunning Lateral Thinking Puzzles, Sterling Publishing, 2006, ISBN 1402732759
• Sandy Silverthorne, John Warner,One-Minute Mysteries and Brain Teasers, Harvest House Publishing, 2007, paperback, 176 pages, ISBN 0-7369-1942-2
• Lloyd King, Test Your Creative Thinking, Kogan-Page, 2003, paperback, 156 pages, ISBN 0-7494-4004-X
• Lloyd King, Amazing Aha! Puzzles, Puzzle Wizard, 2004, paperback, 180 pages, ISBN 1-4116-1330-9

[edit] External links

• The Lateral Puzzles Forum