There are twenty shillings in a British pound sterling. wenty is the atomic number of calcium. Twenty-overs-a-side cricket (called Twenty20) is a popular form of limited-overs cricket. Twenty is the jersey number of soccer players Ole Gunnar Solskjaer of Norway (who plays for Manchester United) and Lukas Podolski (of Germany). The number twenty was referred to as a score by former US president Abraham Lincoln. The number twenty is also in the name of bands such as Matchbox Twenty. A person with perfect eyesight is said to have 20/20 vision.