The barber paradox – Solution

by Christel Hamers | Mar 19, 2021 | Brain Teasers

Suppose someone, let’s call them John, has been found who wants to take on the role of national barber of Giwi. According to the law, John should be male. The law also states that all men have to get a shave at least once a week. so, John has to get a shave at...

Nob’s number puzzle – Solution

by Christel Hamers | Jan 12, 2021 | Brain Teasers

At first sight, the puzzle seems to be rather easy. Looking at the first circles on the top: 99 and 72 pointing to 27, it makes sense to assume the following pattern: 92 – 72 = 27. The same pattern continues following the next few circles down the line: 45...

Four people on a rickety bridge – Solution

by Christel Hamers | Jan 10, 2021 | Brain Teasers

The initial solution most people come up with is the most obvious one: to use the fastest person, in our family, son Ben, to accompany his family members over the bridge one by one and to go back with the torch each time. This would take 10 + 1 + 5 + 1 + 2 = 19...