Bed and breakfast. Cat and dog. Work and salary. Tea and coffee/sugar/milk/scones... - I like the quiz, but some pairings seem to be "opposites" like "work and play" and then again "tea and cake" is something that you have at the same time. It's a bit hard to figure out which one you've ment at each time. Unless you of course play at work or light the lamp when it's dark and then it isn't dark anymore...
You're confusing things by including things that go together because they're part of an expression, because you like them together, and because they frequently are together. Almost like 3 quizzes. That means there are about 50 answers that are just as good as the ones you expect to get. Great format for a quiz, but you need to keep it to one type of answer.