Problem: Background: The Riddler (Edward Nigma) is a fictional supervillain appearing in American comic books published by DC Comics, commonly as an adversary of the superhero Batman. The character made his first appearance in Detective Comics #140 (October, 1948) and was created by Bill Finger and Dick Sprang. Depicted as a Gotham City criminal mastermind, the Riddler takes delight in incorporating riddles and puzzles into his plots, and leaves them as clues for the authorities and Batman to solve. The character is one of Batman's most enduring enemies and belongs to the collective of adversaries that make up Batman's rogues gallery.
Context: In the 12-part storyline "Hush", it is revealed that Riddler suffers from cancer, which also afflicted the mother of Dr. Thomas Elliot. Riddler uses one of Ra's al Ghul's Lazarus Pits to rid himself of the disease, and offers Elliot the chance to cure his mother as well, provided he pays a large sum of money. However, Elliott is in fact eager for his mother to die in order to inherit her fortune. Elliott, who goes on to secretly become the masked criminal Hush, explains he wants to get revenge on his childhood friend Bruce Wayne. The two of them agree to work together and Riddler sets Killer Croc, Poison Ivy, Harley Quinn, Joker, Clayface and Scarecrow out to destroy Batman, with Ra's and Talia al Ghul and Lady Shiva being temporarily drawn into the scheme as well. During the psychotic break that follows exposure to the Lazarus Pit, the Riddler deduces Batman's secret identity and that the late Jason Todd was once Robin; he then reveals his knowledge to Hush. He has Clayface shapeshift into the form of Todd in order to torment Batman haunted by the former Robin's death. Batman first thinks that Riddler had stolen Todd's corpse and hid it outside of Gotham Cemetery, but it was revealed in a later storyline, Batman: Under the Hood, that Todd was alive the whole time and had personally played a role in Riddler and Hush's scheme. When the Riddler threatens to expose Batman's secret identity, the Caped Crusader mockingly labels it an empty threat, pointing out that if Riddler revealed the answer to the riddle "who is Batman?", it would become worthless, something Riddler would not be able to stand. In addition, Batman warns him that if he reveals the secret, it would give Ra's al Ghul a vital clue that he used a Lazarus Pit without his permission, and the League of Assassins would subsequently retaliate against him.
Question: Why does he label it this way?
Answer: pointing out that if Riddler revealed the answer to the riddle "who is Batman?", it would become worthless, something Riddler would not be able to stand.

Problem: Background: Macaulay Carson Culkin was born in New York City. His father, Christopher Cornelius "Kit" Culkin, is a former actor known for his productions on Broadway and is the brother of actress Bonnie Bedelia. His mother is Patricia Brentrup, who never married Culkin. He was named Macaulay after Thomas Babington Macaulay and Carson after Kit Carson of the Old West.
Context: Culkin rose to fame with his lead role of Kevin McCallister in the highly successful blockbuster Christmas film, Home Alone (1990), where he was reunited with Uncle Buck writer and director John Hughes and Uncle Buck co-star John Candy, who played the role of Polka band member, Gus Polinski. He was nominated for a Golden Globe Award, and won an American Comedy Award and a Young Artist Award for his role as Kevin McCallister. In 1991, Culkin starred in an animated Saturday morning cartoon television series, Wish Kid, hosted Saturday Night Live and starred in Michael Jackson's "Black or White" music video. He starred as Thomas J. Sennett in the film, My Girl (1991), for which he was nominated for Best On-Screen Duo and won Best Kiss at the MTV Movie Awards, with Anna Chlumsky. He reprised his role of Kevin McCallister in the sequel, Home Alone 2: Lost in New York (1992), for which he was nominated for a Kids' Choice Award. He played the role of Henry in the drama-thriller film, The Good Son (1993), which only did reasonably well (although he was nominated for MTV Movie Award in the category for Best Villain for his performance). He also appeared, while a student at the School of American Ballet, in a filmed version of The Nutcracker as the title role in 1993, which was staged by Peter Martins from the 1954 George Balanchine New York City Ballet version of the work. He was in the films, Getting Even with Dad (1994), The Pagemaster (1994) and Richie Rich (1994), which were all only mildly successful at the box office.
Question: What was his biggest role?
Answer: Kevin McCallister in the highly successful blockbuster Christmas film, Home Alone (1990),

Problem: Background: Allen Toussaint (; January 14, 1938 - November 10, 2015) was an American musician, songwriter, arranger and record producer, who was an influential figure in New Orleans R&B from the 1950s to the end of the century, described as "one of popular music's great backroom figures." Many musicians recorded Toussaint's compositions, including "Java", "Mother-in-Law", "I Like It
Context: The youngest of three children, Toussaint was born in 1938 in New Orleans and grew up in a shotgun house in the Gert Town neighborhood, where his mother, Naomi Neville (whose name he later adopted pseudonymously for some of his works), welcomed and fed all manner of musicians as they practiced and recorded with her son. His father, Clarence, worked on the railway and played trumpet. Allen Toussaint learned piano as a child and took informal music lessons from an elderly neighbor, Ernest Pinn. In his teens he played in a band, the Flamingos, with the guitarist Snooks Eaglin, before dropping out of school. A significant early influence on Toussaint was the syncopated "second-line" piano style of Professor Longhair. After a lucky break at age 17, in which he stood in for Huey "Piano" Smith at a performance with Earl King's band in Prichard, Alabama, Toussaint was introduced to a group of local musicians led by Dave Bartholomew, who performed regularly at the Dew Drop Inn, a nightclub on Lasalle Street in Uptown New Orleans. His first recording was in 1957 as a stand-in for Fats Domino on Domino's record "I Want You to Know", on which Toussaint played piano and Domino overdubbed his vocals. His first success as a producer also came in 1957 with Lee Allen's "Walking with Mr. Lee". He began performing regularly in Bartholomew's band, and he recorded with Fats Domino, Smiley Lewis, Lee Allen and other leading New Orleans performers. After being spotted as a sideman by the A&R man Danny Kessler, he initially recorded for RCA Records as Al Tousan. In early 1958 he recorded an album of instrumentals, The Wild Sound of New Orleans, with a band including Alvin "Red" Tyler (baritone sax), either Nat Perrilliat or Lee Allen (tenor sax), either Justin Adams or Roy Montrell (guitar), Frank Fields (bass), and Charles "Hungry" Williams (drums). The recordings included Toussaint and Tyler's composition "Java", which first charted for Floyd Cramer in 1962 and became a number 4 pop hit for Al Hirt (also on RCA) in 1964. Toussaint also recorded and co-wrote songs with Allen Orange in the early 1960s.
Question: how did his career start
Answer:
After a lucky break at age 17, in which he stood in for Huey "Piano" Smith at a performance with Earl King's band