Two sisters are we, one is dark and one is fair In twin towers dwelling we're quite the pair One from land and one from sea Tell us truly, who are we?

Why this works

This riddle cleverly plays with the characteristics and common associations of salt and pepper. The "two sisters" refer to the two spices that are often paired together, with "one is dark" representing pepper and "one is fair" representing salt. The phrase "twin towers" hints at the typical salt and pepper shakers that are commonly found together on dining tables. Additionally, "one from land and one from sea" refers to salt, which can be derived from seawater, while pepper comes from land-grown plants, reinforcing their complementary nature in both flavor and presentation.