A fun Valentine's Day riddle is "Declaration of love, beginning of a journey with vows and a ceremony. What is it? Marriage." Another is "A tested formula of love, inevitable part of love stories; the romantic dim light and good food are its friends. What is it? A candlelit dinner."
Some other good Valentine's Day riddles are "It caused the destruction of Troy, the worst of tragedies, and numerous maladies. Yet it is chased, desired and fought for. What is it? Love," and "Testimony of love, signifier of commitment; all it needs is a bottle of wine and a band that shines. What is it? A proposal." Most riddles about love are appropriate for Valentine's Day, as are love jokes such as "Why is lettuce the most loving vegetable? Because it's all heart," or "What is a vampire's sweetheart called? His ghoul-friend."
A Valentine's Day scavenger hunt is a popular activity for couples as well as parents with young children. It can incorporate a menu with riddle clues, such as "Dark and rich or light and sweet. Fill your senses with this delicious treat," which indicates chocolate. Riddles can also point toward Valentine gifts, such as perfume or cologne in the riddle "An evocative scent from a dab or a spray. One whiff and I'll think of you all day."