How long is an official marathon?
Answer42.195 km (26.2 miles)
The marathon distance was fixed at 42.195 km in 1921.
Challenge · Facts & stats
Challenge Daily facts & stats
7 fact-checked facts about daily challenges, habits and records, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
How many cells are in a standard 9×9 sudoku grid?
Answer81
Nine rows of nine cells give 81 cells in total.
Going deeper
What does the Olympic motto 'Citius, Altius, Fortius' mean?
AnswerFaster, Higher, Stronger
The Latin motto means Faster, Higher, Stronger; 'Communiter' (Together) was added in 2021.
The Pomodoro Technique splits work into focused intervals of how long?
Answer25 minutes
Each 'pomodoro' is 25 minutes of focus followed by a short break.
About how long does the Tour de France cycling race last?
AnswerAbout three weeks
The Tour de France is a stage race of about 21 stages spread over roughly three weeks.
Expert level
A well-known University College London study found new habits typically took about how many days to become automatic?
Answer66
The typical time was 66 days, with a wide range from 18 to 254 days, countering the popular 21-day claim.
In which year was the first confirmed ascent of Mount Everest?
Answer1953
Edmund Hillary and Tenzing Norgay reached the summit on 29 May 1953.
Know these cold?Today's round is five questions like these, 20 seconds each. Your streak and level follow you to every arena.Play today's round