questions and answers

quasi- and actual.
quince and apple.
quest and adventure.
quarrel and argue.
query and ask.
quark and atom.
quincy and adams,
quick and agile.
quotient and average.
quip and adage.
quintessence and archetype.

For example,If I go to a movie or play and the director or actors are available afterwards to chat w. the audience, the activity is abbreviated Q&A.