Question: How many lanes does an olympic pool have?
Disambiguated questions and answers: question: How many total lanes does an olympic pool have since 2008?
How many lanes does an olympic pool have for racing, disregarding the empty lanes since 2008?
How many lanes does an olympic pool have prior to 2008?
answer: 10
ten
8
eight
8
eight
8-lane
Natural Questions answer: 10 (from the Wikipedia article "Olympic-size swimming pool")