As above, in French, the conjugation of lots of verbs still sticks in my head.
The 1832 Reform Act, no idea what it is, but I can remember the date.
How to ask where the town hall is in Spanish (always useful
)
The order of rivers on the east coast of England working North to South.
Random Shakespeare quotes, particularly from Macbeth.
Multiple verses of many hymns, plus some Latin singing from assembly.
The Hallelujah chorus from a performance we had to do.
The kind of cookery you were taught in the late 70s, so every sort of cake making method, all pastries (apart from hot water crust as I was ill that day and still have no idea!), bread, classic sauces etc