Squigly Squigly's Brain Teasers

Question:

Are Roman numerals given in small letters or capital letters?

Answer:

Capital letters.

Try another Brain Teaser:

Rough and gray as rock,
I'm plain as plain can be.
But hidden deep inside there's great beauty in me.
What am I?

We have lots more puzzles to provide fun for your brain. Have fun solving these quiz questions. Choose from the following brain games: