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Brain Teaser to test your pattern recognition and other cognitive skills: The Empty Triangle

Please enjoy this fun brain teaser, provided by puzzle master Wes Carroll.

The Empty Triangle:

Pattern Recognition Test - Empty Triangle

Question:

Which number should be placed in the empty triangle?  Read the rest of this entry »

Brain teaser to challenge your frontal lobes

Here is a fun brain teaser from puzzle master Wes Carroll.

Tipping the Scales

free brain teasers for frontal lobes

Question:
The top two scales in the image at the right are in perfect balance. How many diamonds will be needed to balance the bottom set?

This puzzle helps you work out your executive functions –supported in the frontal lobes— by using your pattern recognition, hypothesis testing, and logic.


ANSWER:

Four diamonds

SOLUTION:

First add up the number of clubs in the first two scales (5). Then count how many clubs are in the bottom scale (5). The do the same with the spades, which gets you 5 and 5. There are 4 diamonds in the top two balanced scales. Therefore, it must take 4 diamonds to balance the third scale since all the other measurements are the same.

More brain teasers and games for adults of any age:

Hard brain teaser to challenge your pattern recognition

Here’s a quick but hard brain teaser to challenge your ability to find a pattern. In the table below, each row across follows the same pattern. See if you can discern the pattern and fill in the missing number in the bottom row.

For added challenge, time how long it takes you to complete the puzzle. Then, pass it along to someone else and see who can solve it faster…

7 4 8
3 9 7
6 5 10
? 8 4

Have you solved it yet? If not, here’s a hint:

If you read your figures like words in the West,
then multiply your efforts and subtract the rest.

WARNING:  Answer and solution follows. Try to solve the puzzle before you read further. Read the rest of this entry »

Must-read article: Solving the Brain Fitness Puzzle Is the Key to Self-Empowered Aging

BrainFitnessPuzzle_article_web

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As the con­cept of brain fit­ness (or, the brain’s abil­ity to func­tion effi­ciently and effec­tively in per­sonal and pro­fes­sional life) goes main­stream, the pro­lif­er­a­tion of sci­en­tific find­ings, media reports, and com­mer­cial claims is gen­er­at­ing much noise and con­fu­sion. Know­ing what to believe and what to do presents a real-life puz­zle, lead­ing many peo­ple to Read the rest of this entry »

Math Brain Teaser for Kids and Adults: Archimedes Grave

(Editor’s Note: every other Friday, starting today, we’ll publish a brain teaser to exercise our brains a bit. Here you have one submitted by new contributor Maria Lando. Enjoy!).
Archimedes made a plenitude of significant scientific discoveries throughout his life. He designed machines capable of lifting attacking ships out of the water as well as mirror arrays capable of focusing sun rays and setting enemy ships on fire. He explained why and how bodies float in the water, helping the king verify that his crown is indeed made out of pure gold. He was fascinated with infinity and found the way of approximating the number Pi as well as counting the number of grains of sand that will fit inside the universe. He died telling a Roman soldier that he is too busy to meet a general as he was contemplating yet another mathematical diagram.  His tomb was decorated with his favorite discovery …. What do you think it is?

Read the rest of this entry »

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