Kim Won-sik (Hangul: 김원식 , born February 15, 1993) better known by his stage name Ravi (Hangul: 라비 ), is a South Korean rapper, singer-songwriter, producer, signed under Jellyfish Entertainment. He is a member of the South Korean boy group VIXX and VIXX sub-unit VIXX LR. He debuted as a solo artist on January 9, 2017, with the release of his debut mini album "R.EAL1ZE".
VIXX was titled after the number of albums he owned
A: It's impossible to say

Walkin' is the debut mini-album by South Korean singer Suran. It was released on June 2, 2017, by Million Market and distribuited by LOEN Entertainment. It consists of five songs, including "Wine" featuring rapper Changmo, previously released as a digital single, and the title track "1+1=0" featuring singer Dean.
A song on Walkin' has an invalid math equation for a title.
A: Yes

The Choirboys is a 1977 American comedy-drama film directed by Robert Aldrich, written by Christopher Knopf and Joseph Wambaugh based on Wambaugh's novel of the same title. It features an ensemble cast including Charles Durning, Louis Gossett, Jr., Randy Quaid, and James Woods. The film was released to theaters by Universal Pictures on December 23, 1977.
Universal Pictures released it on BluRay
A:
It's impossible to say