Which late-1960s TV police drama featured three young undercover cops?

What is a large, distinct landmass like India, part of a continent, called? Which word names both a large stiff feather and a porcupine spine? Which large wild sheep of North America has massive curled horns? What is a lariat's shorter name? A "lavender" was once a woman who did what? A 1955 law declared that which motto must appear on all U.S. coins and currency? A law student in the Philippines in the 1930s, he was found guilty of murder but later acquitted. Who? A lawsuit over sewing machine royalties between Elias Howe and which man was settled in 1854?