Misc: Waves break when their height is how much more than the depth of the water?

Questions

What country did Lord Haw Haw Broadcast propaganda for in World War II?

What instrument does George Harrison play on Norwegian Wood?

What facial feature contains the sperm whale's spermactei?

What hit did Essex record to their #1 hit?

In WW II military slang, What's a "pineapple"?