In a June *Chalkdust* book review of Daniel Griller’s second book, *Problem solving in GCSE mathematics*, Matthew Scroggs presented the following problem #65 from the book (without a solution):

“Solve _______________”

Scroggs’s initial reaction to the problem was “it took me a while to realise that I even knew how to solve it.”

Mind you, according to *Wikipedia*, “GCSEs [General Certificate of Secondary Education] were introduced in 1988 [in the UK] to establish a national qualification for those who decided to leave school at 16, without pursuing further academic study towards qualifications such as A-Levels or university degrees.” My personal feeling is that any student who could solve this problem should be encouraged to continue their education with a possible major in a STEM field.

See Cube Roots Problem for a solution.