What do 100 calories look like?

Are there 100 calories in 18 Fat Free Rold Gold Tiny Twist Pretzels or in 25? If you picked 18, you are correct. How about two dark chocolate kisses or five dark chocolate kisses -- which serving has 100 calories? Good news: You can have five kisses for 100 calories.

Women's Health magazine puts readers to the 100-calorie test with this online questionnaire. Even better than my two previous questions, this survey features photos of various foods in their competing serving sizes and asks you to pick the 100-calorie portion.

Shrimp and cocktail sauce, peanuts and dried cranberries, baby carrots and hummus, bagel and doughnut portions, even McDonald's French fries are a few of the foods that make an appearance in this quiz. It's sure to help you fine-tune your snack smarts. So get started. And best wishes for a stellar test score.