What famous composer wrote "Messiah," the musical work featuring the "Hallelujah" chorus often performed at Christmas?

George Frideric Handel

Who killed the Gorgon Medusa by using a reflective shield? Who advised Moses to appoint assistants to help judge Israel? Which iconic pop duo sang "Wake Me Up Before You Go-Go"? Who killed Albus Dumbledore? Who is credited with inventing vulcanized rubber?