Quizzes worth your attention.

MojQuiz is a free online quiz platform built around a simple idea: a tightly-edited pool of well-checked questions, played in short timed rounds, beats an infinite scroll of shallow content for actually retaining what you learn. The site is organised around thirteen categories — general knowledge, science, history, geography, sports, entertainment, current affairs, competitive exams, technology, literature, mathematics, music, and a rotating daily set — each with three difficulty levels and a hundred questions per level. Every round is shuffled fresh, so the same ten questions never come up twice in a row.

Underneath the quiz layer sits a slower one. The notebook and the resources section carry our long-form editorial: pieces on the testing effect, spaced practice, memory palaces, study technique, and the cognitive-science research that makes the case for quiz-style retrieval as a study tool. Each article cites the underlying research by named researcher and year, and we document our research and verification process on the editorial standards page.

Everything on the site is free, takes no signup, and works in any modern browser. The questions are kept under quarterly review for anything date-sensitive (heads of state, populations, sporting records) and annual review for the rest of the pool. If you spot a question that's wrong, the email at the foot of every page is real and we ship corrections fast.