The beer in a barrel and the light switch puzzles – they need some insight and lateral thinking
Brief 4-day mindfulness meditation has been found to improve not only emotional regulation and stress reduction, but also cognitive efficiency and working memory.
Simply talking aloud while problem solving and reasoning improves intelligence in older people – by over 10 IQ points.
More Mensa training brainteasers and exercises to prepare for the Mensa challenge.
This remarkable study by Van Der Werf and his colleagues shows that you can learn motor skills just by watching and then sleeping shortly after. But you won’t learn from
You have 3 jugs of different size – 8 oz, 5 oz and 3 oz. Someone fills the 8 oz jug full of juice and you have to divide it