Beatles Lyrics: "to a bridge by a fountain, where rocking horse people..."?

Questions

Pinball: Author of the classic book "Pinball!", he helped get pinball unbanned in NYC?

Potluck: The muslim calendar reckons time from this event (one word)?

Potluck: "What the big boys eat"?

Potluck: Fashion designer that owns Paris's Maxim's restaurant?

Potluck: Part of the deer that Weineraner dogs are trained to attack?