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Dan Ariely, the author of Predictably Irrational has been a valuable member of the board of scientific advisers at MIND360 for some time and this best seller simply justifies the perfectly rational decision to work with him all this time

According to the New York Times:

“Predictably Irrational is a far more revolutionary book than its unthreatening manner lets on. It’s a concise summary of why today’s social science increasingly treats the markets-know-best model as a fairy tale….he and his fellow social scientists want to replace the “rational economic man” model with one that more accurately describes the real laws that drive human choices.”

We’ve come up with a promotion for all exsiting and new members of MIND360. Register for a low price Annual Membership and we’ll send you a hardback copy of Predictably Irrational absolutely FREE ! this book is an invaluable companion on your journey to brain fitness.

Visit our site to get your free copy of Predictably Irrational by Dan Ariely

It is a known fact that a human brain has the ability to continually adapt and rewire itself. Even when we grow old, our brain can grow new neurons. Thus, most of the times, mental decline is the result of inactivity and lack of brain exercise. Brain exercises like playing different kinds of brain games can help you keep your brain fit and healthy.

For more information, click here.

Following on from the breaking story of the craziness of questions posed to job applicants, especially at such media giants as Google. Respected brain portal SharpMinds has put together their top 7 Guesstimations / Logic Puzzles for Brain Challenge

So if you’re looking to land that dream job in Mountainview, this could be the time to brush up on your brain fitness by engaging in a program of regular brain teasers exercises.

Please try to GUESS the answers to the questions below based on your own logical approach. The goal is not to find out (or Google) the right answer, but to 1) identify the logic approach that will help “guesstimate” an appropriate range, say + or – 30% of the actual answer, and then 2) complete the calculations (ideally mentally, but you can also take notes) to provide an estimate.

Questions

1) How many times heavier than a mouse is an elephant?.

2) How many firefighters are there in San Francisco?.

3) How many trees are there in NYC’s Central Park?.

4) How many shoes have you had in your life?.

5) How many golf balls can fit in a school bus?.

6) In 1999, how were these baby boy names ranked by popularity: Kevin, Jose, Hugh.

7) What is the weight of a large commercial airplane?.

The Answer appear below. Again, the key here is to try, plan the steps towards the solution, and do the mental calculations to find a reasonable range. That’s the brain challenge. The goal is not to find the precise correct answer.

Answers:

1) Around 150,000. An average elephant weighs 4,000 kg on average; an average mouse 25 grams.

2) Around 350 firefighters on duty on any given day, out of a pool of 1700 firefighting overall staff.

3) There are over 26,000 trees (of approximately 175 species) in the Park.

4) We don’t know (or need to know) how many pairs you have had.

5) About 500,000, assuming the bus is 50 balls high, 50 balls wide, and 200 balls long.
6) Rankings of baby boy names in 1999, according to Social Security Administration: 1. Jose (#30), 2. Kevin (#32), 3. Hugh (#830).

7) For a Boeing 747:
- Empty: around 400,000 pounds (lbs), or 181 metric tons
- Maximum Takeoff Weight: around 825,000 pounds, or 374 metric tons
- For context, the weight of an empty Hummer is 8,600 pounds.

A recent CNN article explains well why a growing number of companies use brain teasers and logic puzzles of a type called “guesstimations” during job interviews. If you’re dreaming of landing a coding job at an A-list tech company? It might be a good idea to prep for your interviews by pondering how many golf balls can fit inside a school bus. Or how much you would charge for washing all the windows in Seattle. Or why, exactly, manhole covers are round and not, say, square.

Seriously, this was a question asked during an interview at the GooglePlex:

QUESTION: How many golf balls can fit in a school bus?

ANSWER: About 500,000, assuming the bus is 50 balls high, 50 balls wide, and 200 balls long

Here’s the summarized Google test provided by CNN

Statistics show that around 75% of senior people face memory-related problems. However, lapse of memory is not a disease and it can be reduced to a certain extent by undertaking brain exercises and playing brain games. Memory games for seniors help them improve their memory, alleviate loneliness, and also reduce their health problems. Many brain-related health problems such as Alzheimer’s, dementia and anxiety could be controlled or reduced with memory games for seniors.

For more information, click here.

Memory Games for adults could help you not only in testing your memory, but also in improving it. Memory games for adults allow us to have fun and also exercise our brain while doing so. In fact, studies have shown that memory games are one of the best ways of keeping the brain fit and healthy.

Source of information: Click here.

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There is a direct relationship between reduction in brain use and reduction in brain function. Sample this, studies have shown that many people have witnessed a marked decrease in their brain cognition the first year after retirement from their career. Thus, it can be said that your brain starts underperforming when it has nothing to do. One of the best ways to keep your brain healthy is to play memory games. Memory games help you exercise your brain and improve its functioning.

For more information, click here.

Brain games online offer a totally new, fun, and innovative way for the students to become active and motivated learners. Brain games online are formulated on the basis of recent brain researches and they engage students with their attractive graphics and techniques to help them develop higher concentration and motivation towards their studies.

For more information, click here.

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