The song was written by Hyuna, Bang Hye-hyun, Na Jung-ah (153/Joombas), Kwaca and GroovyRoom.<ref>{{cite web|title=현아 신보에 그루비룸·기리보이·박진영 등…국내외 뮤지션 총집결|url=https://m.entertain.naver.com/article/011/0004331833|access-date=2024-04-24|website=Sedaily}}</ref> The song is composed in the key [[A-flat minor]] and has 130 beats per minute and a running time of 2 minutes and 46 seconds.<ref>{{Cite web|last=|first=|date=|title=Key & BPM for Q&A by Hyuna {{!}} Tunebat|url=https://tunebat.com/Info/Q-A-HyunA/4AYpLGpfO28geKxxxZ3ztu|access-date=May 3, 2024|website=Tunebat}}</ref>
==Music video and promotion==
On May 1, the official teaser for the music video of "Q&A" was released.<ref>{{Citation|last=HyunA|title= HyunA - Q&A (Official MV Teaser)|date=2024-05-01|url=https://www.youtube.com/watch?v=qXqe0WAqEqo|accessdate=2024-05-03}}</ref> On May 2, the official music video was released.,<ref>{{Citation|last=HyunA|title=현아 (HyunA) - Q&A (Official MV)|date=2024-05-02|url=https://www.youtube.com/watch?v=9GFnnPg50qs|accessdate=2024-05-03}}</ref> Which she held an online comeback show to commemorate the release of her EP through her official [[YouTube]] channel.<ref>{{cite web|url=https://www.youtube.com/watch?v=aMuztGrS0Io|title=현아 (HyunA) - 'Q&A' Online Comeback Show|date=May 2, 2024|accessdate=May 2, 2024|publisher=HyunA|via=[[YouTube]]}}</ref> On the same day, Hyuna also her first comeback stage for the song on [[Mnet (TV channel)|Mnet]]'s ''[[M Countdown]]''.<ref>{{cite web|url=https://www.youtube.com/watch?v=WNIkp0gfzie-cGRz|title='최초 공개' HyunA - Q&A #엠카운트다운 EP.841 Mnet 240502 방송|date=May 2, 2024|accessdate=May 3, 2024|publisher=Mnet K-POP|via=[[YouTube]]}}</ref>
==Promotion==
On May 2, Hyuna held an online comeback show to commemorate the release of her EP through her official [[YouTube]] channel.<ref>{{cite web|url=https://www.youtube.com/watch?v=aMuztGrS0Io|title=현아 (HyunA) - 'Q&A' Online Comeback Show|date=May 2, 2024|accessdate=May 2, 2024|publisher=HyunA|via=[[YouTube]]}}</ref> On the same day, Hyuna also held her first comeback stage for the song on [[Mnet (TV channel)|Mnet]]'s ''[[M Countdown]]''.<ref>{{cite web|url=https://www.youtube.com/watch?v=WNIkp0gfzie-cGRz|title='최초 공개' HyunA - Q&A #엠카운트다운 EP.841 Mnet 240502 방송|date=May 2, 2024|accessdate=May 3, 2024|publisher=Mnet K-POP|via=[[YouTube]]}}</ref>
