How many siblings do I have?

What year was I born?

What is my favorite number?

How many countries have I visited?

What is the sum of the digits in my birth year?

How many letters are in my first name?

What is my shoe size (US men's)?

If I'm 'x' years old now, and I was 'y' years old 10 years ago, what is 'x-y'?

How many pets do I currently own?

If I ate 2/5 of a pizza, what fraction of the pizza is left?