Construct a question that every answer in the list is correct and reasonable for it.

[Q]: horserace, poker, football, blackjack, roulette
[A]: name someting people bet on.

[Q]: server, valet service, hairdresser, taxi driver, bartender, bellhop
[A]: name a type of service person who you never know how much to tip.

[Q]: pictures, vase, candles
[A]:
name something people put on top of a piano.