Summaries and Customer Reviews are supplied by Amazon.com

Puzzle fans have bought more than 650,000 copies of the Mensa Genius Quiz series-the only books that let readers "match wits with Mensa," comparing how well they do against members of the famous high-IQ society. Here, in a giant omnibus edition, are four best-selling titles: The Mensa Genius Quiz Books 1 & 2, The Mensa Genius Quiz-A-Day Book, and The Mensa Genius ABC Book. Here are more than 800 fun mindbenders to exercise every part of your brain-word games, trivia, logic riddles, number challenges, visual puzzles-plus tips on how to improve your thinking skills. All the puzzles have been tested by members of American Mensa, Ltd., and include the percentage of Mensa testers who could solve each one, so that you can score yourself against some of the nation's fittest mental athletes.

Average Customer Rating:

Great fun!	Customer Rating:
I am amazed at the response I have had from my friends. We are having a lot of fun Matching Wits with Mensa. Try it at your next family gathering.

Parting with the critics	Customer Rating:
I must part with the critics. I enjoyed this one tremendously. Great fun. Recommended.

A brief comment

Customer Rating:

This book by well known and long-time Mensa member Marvin Grosswirth complements the several books that Dr. Abby Salny has put out. There's enough variety in the types of questions to keep just about anybody entertained, although a few of the questions I'm not used to seeing on the older, more traditional IQ tests. Supposedly almost a quarter of a million people have bought the various Mensa Quiz books, which is interesting, because Mensa's membership (I being one) has been gradually declining for a couple of decades. Overall a good book of puzzles, brain teasers and IQ questions to keep those mental muscles in tune, which is important--one of the most important things brain scientists have learned over the last several decades is that the brain is very much like a muscle--either you use it or lose it.

Surely the answer is 5.5	Customer Rating:
The question asks "How many horses did the owner SELL", not how many did he get rid of. Assuming (although not stated) that he ended up with no horses left: To the first purchaser, he SOLD 3.5 and GAVE AWAY 0.5. To the second, he SOLD 1.5 and GAVE AWAY 0.5. To the third, he SOLD 0.5 and GAVE AWAY 0.5. So the total number of horses he SOLD is 3.5 + 1.5 + 0.5 = 5.5

THE ANSWER IS 7

Customer Rating:

The orginal question that was posted should have indicated that there were no horses left at the end of the day. Without that qualifier, there can be no definitive answer. If the Merchant has 7 horses when he sees his FIRST customer, then sells half (3.5) and adds half a horse (0.5), then he has sold to the first customer 4 horses, leaving him with 3 horses. Then, the Merchant goes to his SECOND customer, and sells half his horses (1.5) and adds half a horse (0.5) then he has sold to the SECOND customer 2 horses, leaving him with 1 horse. Finally, the Merchant goes to his THIRD and FINAL customer, and sells half of his horses (0.5) and adds a half a horse (0.5), so that the Merchant has sold to the THIRD and FINAL customer 1 horse, leaving the Merchant with ZERO horses. Three transactions, selling half his total plus 0.5, ending the series in zero. The total number of horses is 7.