This mystery cache is based on children’s nursery rhymes. Each clue suggests a well-known nursery rhyme which includes the name of an animal. For example, “Pussy Cat Pussy Cat where have you been?” is clearly a “Cat”. When you have worked out all the animals’ names, you need to deduce some suitable numbers which you can use in the formula to work out the final coordinates for the cache.
The cache can be found at 51N [ A+B ] . [ A² ] [ E² ] , W001 [ C ] . [ F ] [ (DxF² + F² ] .