Brain Teasers and Logic Riddles (Full version) in 14 minutes.

It measures numerical reasoning and spatial visualisation. It suits learners, curious readers and people preparing an exam on this subject. Expect logic puzzles and visual puzzles.

Easy, Intermediate and Expert levels each offer Short version with 10 questions about 5 minutes, and Full version with 30 questions about 14 minutes, or about 15 minutes for Expert. Choose Short for a quick overview, Full for a more precise score.

Questions appear one at a time in a fixed order. You must pick an answer to proceed, but you may go back, change an answer, and flag a question with Bookmark for review. When the time remaining ends, the test ends by itself and unanswered questions count as wrong.

Practise transitive reasoning, lateral thinking, numerical reasoning and spatial visualisation. Work methodically on rotations, grids, visual series and sequences. Do untimed puzzles to build speed, then add a time limit.

You get one point per correct answer. The band is Needs work below 40%, Intermediate from 40%, Advanced from 60%, and Expert from 80% only at Expert level; at other levels the top band is Advanced.

You need at least 6 correct answers out of 10 or 18 correct answers out of 30 depending on the version. A passed test earns a PDF certificate with first and last name, score, date, a certificate number and a QR code opening a verification page.

Use Start again to retake as often as you like; the questions stay the same. The rankings, filtered by test, country and city, show only your best attempt, which is highest score then shortest time. They display first name, last name initial, country, city, score and time. Your result remains visible only to you.