| Group | Odd One Out | Reason |
| Remus Lupin, Minerva Mcgonagall, Sirius Black, Rita Skeeter | |
| Fat Friar, Fat Lady, Grey Lady, Bloody Baron | |
| Miles Bletchley, Oliver Wood, Zacharias Smith, Ronald Weasley | |
| Anthony Goldstein, Colin Creevey, Draco Malfoy, Lee Jordan | |
| Fainting Fancy, Portable Swamp, Ton-Tongue Toffees, Cockroach Clusters | |
| Rodent, River, Royal, Rat | |
| Neville Longbottom, Luna Lovegood, Ronald Weasley, Harry Potter | |
| Cleensweep Eleven, Lightning, Comet 260, Nimbus 2000 | |
| Draco Malfoy, Neville Longbottom, Sirius Black, Harry Potter | |
| Blaise Zabini, Cormac McLaggen, Marcus Belby, Ginny Weasley | |
| | Group | Odd One Out | Reason |
| Minerva McGonagall, Severus Snape, Gilderoy Lockhart, Pomona Sprout | |
| Pensieve, Sorting Hat, Gryffindor's Sword, Lost Diadem | |
| Salazar Slytherin, Merope Gaunt, Tom Riddle Sr., Ignotus Peverell | |
| Dementors, Centaurs, Giants, Inferi | |
| Three Broomsticks, Flourish & Blotts, Quality Quidditch Supplies, Slug & Jiggers Apothecary | |
| Badger, Serpent, Gryffin, Eagle | |
| Elder Wand, Philosopher's Stone, Invisibility Cloak, Resurrection Stone | |
| Hepzibah Smith, Gellert Grindelwald, Cedric Diggory, Lily Potter | |
| Penelope Clearwater, Moaning Myrtle, Colin Creevey, Neville Longbottom | |
| Chimaera, Hippogriff, Manticore, Acromantula | |
|