Answer:
Take one royal word in the plural and make it singular by adding one letter
These are the bumpy parts of your digits
It's shorter than the rest, but when you're happy, you raise it up like it's the best. What is it?
Made of ten but two we make, When assembled others quake, Five apart and we are weak, Five together havoc wreak. What are we?
Every country has one, though we are not the same. Waving to our citizens, throughout the wind and rain. What is it?
What language does a billboard speak?