What is "twenty one"

num. (alternative spelling of twenty-one English)

Twenty One is an American game show originally hosted by Jack Barry which aired on NBC from 1956 to 1958. Produced by Jack Barry-Dan Enright Productions, the program became notorious for being a rigged quiz show which nearly caused the demise of the entire genre in the wake of United States Senate investigations. The 1994 movie Quiz Show is based on these events. A new version aired in 2000 with Maury Povich hosting, lasting about five months, again on NBC.

Twenty One is the third album by Mystery Jets, released in the UK on 24 March 2008.

The first single from the album, " Young Love" featuring Laura Marling, was released on 10 March 2008.

The album originally reached #50 in the UK Albums Chart but was hastily rereleased with an additional cover of Aztec Camera's hit single "Somewhere in My Heart" to coincide with the release of eighties-themed single "Two Doors Down" (featuring sax by Nik Carter), which peaked at #24 in the UK Singles Chart. This new version of the album peaked at #42 in the charts.

'Young Love', 'Two Doors Down' and 'Half in Love with Elizabeth' were released as singles. All three songs, in addition to 'Flakes' (which was released as a free download of the week via the UK iTunes Store) had music videos shot for them. The 7" vinyl EP of 'Half in Love with Elizabeth' features the band performing 'Flakes' with Florence Welch of Florence + the Machine performing vocals, this one of her earliest releases, following the release of her first single Kiss with a Fist by only a few months.

Twenty One is an album by pianist Geri Allen with bassist Ron Carter and drummer Tony Williams recorded in 1994 and released on the Blue Note label.