by Christel Hamers | Mar 19, 2021 | Brain Teasers
Consider the following variation on Russell’s paradox. On the fictitious island nation of Giwi, very man has to get a shave at least once a week. This is prescribed by law. The can shave themselves or have someone else, for example the national barber, do the... 
by Christel Hamers | Jan 14, 2021 | Brain Teasers
Ivan Moscovich was a designer and commercial developer of games, toys and puzzles. Having survived two concentration camps, he was liberated by British troops in 1945 and was sent to Sweden for recuperation before returning home.After finishing his university studies... 
by Christel Hamers | Jan 8, 2021 | Brain Teasers
Child psychologists have long since recognised that children learn through games and play. Being in control in play helps them to learn to manage their feelings and when children make or build things in their play, the are building skills and confidence in themselves... 
by Christel Hamers | Jan 5, 2021 | Brain Teasers
When I turned BBC news on this morning, the first words I heard were ’emotional well-being’ and ‘cognitive decline’. Research has shown that a dexterous brain makes for happier, healthier people in general. Brain teasers and logic puzzles are... 