How long is one lap of the inside lane of a standard outdoor running track?
Answer400 m
A standard outdoor athletics track measures 400 m around the innermost lane.
Challenge · Facts & stats
Challenge Guru facts & stats
7 fact-checked facts about challenges, goals and games, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
What size is a standard sudoku grid?
Answer9 by 9
Standard sudoku uses a 9x9 grid divided into nine 3x3 boxes.
Going deeper
In a SMART goal, what does the letter T stand for?
AnswerTime-bound
SMART goals are Specific, Measurable, Achievable, Relevant and Time-bound, meaning they have a deadline.
What does the Japanese word 'kaizen', used for continuous improvement, roughly mean?
AnswerChange for the better
Kaizen means improvement or change for the better, and names the idea of small, steady gains.
In the widely used 'habit loop' model, what three parts make up a habit?
AnswerCue, routine, reward
The habit loop describes a cue that triggers a routine, which is reinforced by a reward.
Expert level
In which year was the first crossword puzzle published in a New York newspaper?
Answer1913
Arthur Wynne's word-cross puzzle appeared in the New York World on 21 December 1913.
Which city hosted the 1960 Games now recognized as the first Paralympic Games?
AnswerRome
The first official Paralympic Games were held in Rome in 1960, following the Olympics there.
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