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Disc1
| 1 | The Riddle (original radio edit) | Marco van Bassken | 3:15 |
| 2 | The Riddle (Topmodelz remix edit) | Marco van Bassken | 3:24 |
| 3 | The Riddle (Clubbticket remix edit) | Marco van Bassken | 3:27 |
| 4 | The Riddle (Phunkless Electro mix edit) | Marco van Bassken | 3:37 |
| 5 | The Riddle (original club mix) | Marco van Bassken | 5:38 |
| 6 | The Riddle (Topmodelz remix) | Marco van Bassken | 5:03 |
| 7 | The Riddle (Clubbticket remix) | Marco van Bassken | 5:49 |
| 8 | The Riddle (Phunkless Electro mix) | Marco van Bassken | 5:20 |