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 1953, Edmund Hillary and which climber became the first confirmed to reach Everest's summit?
AnswerTenzing Norgay
Tenzing Norgay and Edmund Hillary reached the top of Mount Everest on 29 May 1953.
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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