Answer:
Who has married hundreds but always been single?
I'm a small ring shaped fried cake, often with bavarian cream or fruit filling, and sometimes covered in icing and sprinkles.
Small, containing light, You'll need it in the dark, It will provide that spark, and shine into the night. Will light up any pyre, 'Cause it can help make a fire.
It is a common and favored clothing material among biker gangs and superheroes.
What stays in one corner but travels around the world?
Do what he says and you'll be fine, don't and you lose the game.