Answer:
I'm a small ring shaped fried cake, often with bavarian cream or fruit filling, and sometimes covered in icing and sprinkles.
Take one royal word in the plural and make it singular by adding one letter
What has been around for millions of years but is never more than a month old?
What flies forever, rests never?
Very helpful if you intend to go gently down a river.
When is it bad luck to see a black cat?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?