How long is an Olympic-size swimming pool?
Answer50 m
Olympic pools are 50 m long, so a 100 m race is two lengths.
Challenge · Facts & stats
Challenge Directory facts & stats
7 fact-checked facts about challenges, records and competitions, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
How many events are in a decathlon?
Answer10
Deca- means ten: the decathlon combines ten track and field events over two days.
Going deeper
How many pieces does each player start with in chess?
Answer16
Each side starts with 8 pawns, 2 rooks, 2 knights, 2 bishops, a queen and a king: 16 pieces.
In a round-robin tournament, who does each competitor play?
AnswerEvery other competitor
In a round-robin format every competitor meets every other competitor.
In soccer, what is it called when one player scores three goals in a single game?
AnswerHat-trick
Three goals by one player in a match is a hat-trick, a term first used in cricket.
Expert level
How many different first moves can White make in a game of chess?
Answer20
White has 16 possible pawn moves and 4 knight moves, for 20 legal first moves.
In golf, what is an 'albatross' (also called a double eagle)?
AnswerThree strokes under par on a hole
An albatross is three under par on a hole, rarer than an eagle (two under) or a birdie (one under).
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