9x15: Immortal Bard
9x12: Intelligence
9x11: Illumination
9x10: Inland Revenue
9x08: Inequality
9x07: Incomprehensible
9x05: Invertebrates
9x04: Indecision
9x02: International
8x14: Hocus-Pocus
8x12: Horses and Hunting
8x11: Highs and Lows
8x10: Health and Safety