Did you ever come across these words and thought these are wrong?

'Did you ever come across these words and thought these are wrong?'

Persons / Waters.

1.Persons is still appropriate in legal and other formal contexts.

*Authorities are seeking persons of interest.

2.Waters is used especially of an area of seawater, and tends to appear in more formal context.

*Shipping lanes in international waters.

*The azure skies and clear waters of the Pacific ocean.