| recordings |
|---|
| 1978-05-26 | Question | cover and instrumental | The London Symphony Orchestra | 5:14 |
| 1992-09-09 | Question | live | The Moody Blues | 6:23 |
| 1992 | Question | cover | Fish | 6:40 |
| 1994-09-29 | Question | live | The Moody Blues | 6:33 |
| 1997-03-08 | Question | live | The Moody Blues | 6:21 |
| 2000-05-01 | Question | live | The Moody Blues | 6:14 |
| 2017-07 | Question | live | The Moody Blues | 6:35 |
| A Question of Balance | cover | Danny Cox | 5:45 |
| Question | | The Moody Blues | 5:38 |
| Question | cover | Nada Surf | 5:19 |
| Question | | The Moody Blues | 5:45 |
| Question | cover | James Last | 5:43 |
| Question | live | Justin Hayward | 7:10 |
| Question | | The Moody Blues | 5:37 |
| Question | | The Moody Blues | 5:41 |
| Question | | The Moody Blues | 4:56 |
| Question | | The Moody Blues | 5:37 |
| Question | | The Moody Blues | 6:22 |
| Question | live | The Moody Blues | 6:25 |
| Question | | The Moody Blues | 5:42 |
| Question | | The Moody Blues | 4:57 |
| Question | | The Moody Blues | 5:39 |
| Question | | The Moody Blues | 4:57 |
| Question | cover | Conqueror | 4:43 |
| Question | | The Moody Blues | 4:53 |
| Question | | The Moody Blues | 4:52 |
| Question | live | The Moody Blues | 5:44 |
| Question | | The Moody Blues | 5:43 |
| Question | | The Moody Blues | 5:38 |
| Question | | The Moody Blues | 6:37 |
| Question | | The Moody Blues | 5:37 |
| Question | | The Moody Blues | 5:45 |
| Question | | The Moody Blues | 4:55 |
| Question | | The Moody Blues | 5:43 |
| Question | | The Moody Blues | 6:08 |
| Question | | The Moody Blues | 5:39 |
| Question | | The Moody Blues | 5:33 |
| Question | | The Moody Blues | 6:59 |
| Question | | The Moody Blues | 6:56 |
| Question | | The Moody Blues | 4:56 |
| Question | | The Moody Blues | 4:56 |
| Question | live | The Moody Blues | 6:18 |
| Question | | The Moody Blues | 5:38 |
| Question | | The Moody Blues | 4:58 |
| Question | live | The Moody Blues | 7:37 |
| Question | live | The Moody Blues | 7:49 |
| Question | | The Moody Blues | 7:39 |
| Question | | The Moody Blues | 7:59 |
| Question | live | Moody Blues | 7:39 |
| Question | | The Moody Blues | 6:10 |
| Question | | The Moody Blues | 6:16 |
| Question | live | The Moody Blues | 6:57 |
| Question | | The Moody Blues | 7:04 |
| Question | | The Moody Blues | 7:03 |
| Question | | The Moody Blues | 6:19 |
| Question | | The Moody Blues | 3:04 |
| Question | | The Moody Blues | 4:56 |
| Question | | The Moody Blues | 4:57 |
| Question | | The Moody Blues | 4:52 |
| Question | | The Moody Blues | 5:44 |
| Question | | The Moody Blues | 5:42 |
| Question | | The Moody Blues | 4:56 |
| Question | | The Moody Blues | ?:?? |
| Question | | The Moody Blues | 4:59 |
| Question | | The Moody Blues | 4:56 |
| Question | | The Moody Blues | 4:57 |
| Question | | The Moody Blues | 5:40 |
| Question | | The Moody Blues | 4:57 |
| Question | | The Moody Blues | 4:51 |
| Question | | The Moody Blues | 6:09 |
| Question | | The Moody Blues | 4:52 |
| Question | live | The Moody Blues | 4:55 |
| Question | | The Moody Blues | 4:56 |
| Question | | The Moody Blues | 5:46 |
| Question | | The Moody Blues | 4:57 |
| Question | | The Moody Blues | 5:39 |
| Question (5.1 mix) | | The Moody Blues | 5:44 |
| Question (1970) | | The Moody Blues | 4:54 |
| Question (1989 version) | live | The Moody Blues | 5:46 |
| Question (1989 version) | | The Moody Blues | 5:44 |
| Question (1989 version) | | The Moody Blues | 5:45 |
| Question (alternate version) | | The Moody Blues | 6:09 |
| Question (edit version) | | The Moody Blues | 4:55 |
| Question (live at the Coliseum, Seattle, 1979) | live | The Moody Blues | 6:50 |
| Question (live at the NEC—1997) | live | The Moody Blues | 6:33 |
| Question (live—1983) | live | The Moody Blues | 6:23 |
| Questions | | The Moody Blues | 4:51 |
