In which 1987 comedy does Danny DeVito's character want Billy Crystal's character to kill his mother?

Billy Barty played the title role in a 1987 film about which gold-spinning fairy-tale character? Billy Bush, a first cousin of George W. Bush, hosted a 2003 revival of which classic Monty Hall game show? Billy Crudup played John Merrick in a 2002 Broadway revival of which drama? Billy Crystal goes on a cattle drive and causes a stampede with his coffee grinder in which 1991 comedy? Billy Graham wrote a 1975 book calling which beings "God's Secret Agents"? Billy Graham presided over which former president's funeral in Yorba Linda, California, on April 27, 1994? Billy Idol reached No. 1 in 1987 with a live cover of which Tommy James & the Shondells song? Psychologists Alfred Binet and Theodore Simon developed an early test to measure what?