What is "interrogatives"

Usage examples of "interrogatives".

Through a window cemented open by decades of city soot, Seve could hear the swift, musical jabber of Cantonese, its broad sentence-ending interrogatives like a song of the sea.

Now Karpov was truly on his guard, knowing that by supplying an answer to these minuscule interrogatives, he would be unearthing a wealth of information for Lantin to pore over.

Maybe it was the way Belbo’s Piedmont drawl made his statements interrogative and his interrogatives taunting.