Answer:
Take one royal word in the plural and make it singular by adding one letter
What fiveletter word, no matter how you pronounce it, is always pronounced wrong?
What can't you see, hear or feel, until it’s too late. What shadows love, and shopkeepers hate?
What has black spots and a white face, is fat not thin, and helps you to win, but tumbles all over the place?
Poor people have it. Rich people need it. If you eat it you die. What is it?
This food is a tortilla filled with cheese and sometimes chicken before being heated or cooked.