I was carried into a dark room, and set on fire. I wept, and then my head was cut off. What am I?

Why this works

This riddle uses vivid imagery and metaphorical language to describe the life cycle of a candle. When a candle is "carried into a dark room," it is brought in to provide light, which it does when it is "set on fire" (lit). As it burns, the wax melts and drips, which is represented by the "wept" part, and eventually, the wick or the top part of the candle—often referred to as the "head"—is consumed or burnt away, hence "my head was cut off." The cleverness lies in how these actions are personified to create a dramatic narrative around an everyday object!