useless trivia: What Word Means: Trough?

Questions

Multi-purpose gadget which helps the Doctor out of many sticky situations?

Very famous painting which is an important plot element in "City of Death"?

--- Apples Up On Top (written under a pseudonym)?

_Mr. Brown Can ---! Can You_?

He won a 1951 Oscar for _Gerald McBoing-Boing_, a boy who only says this?