The tricky part is that each son has one sister. Should we count three different sisters? Not necessarily! All three brothers could share the same sister, meaning only one additional person needs to be counted.
The family consists of two parents, three sons, three wives, three grandsons, and one sister. That gives us 12 people in total!
The secret to this puzzle is paying attention to the wording rather than rushing to count. Since all three brothers could have the same sister, there’s no need to count her three times.
Did you get the correct answer before reading the explanation? Share this puzzle with your friends and see if they can solve it too!
