![Sample our Engineering & Technology journals, sign in here to start your access, latest two full volumes FREE to you for 14 days]({"type":"image" , "src" : "/sda/5933/TOC-Subject-Sample-2021-Engineering-Tech.jpg"})
Abstract
This article introduces the intriguing properties of the integer seven through three brain‐teaser type puzzles, which teachers might like to try with pupils as ‘end‐of‐term’ light relief. It is hoped that the puzzles will spark interest that may kindle into some serious thought, perhaps for a holiday project.