Riddle: Jayden and Gabriela went up a hill for a picnic. They have 3 kids, and their 3 kids have 3 kids. How many people went on the picnic?
Answer: 2. "Jayden and Gabriela went up a hill for a picnic." Then I gave extra information, about they having kids. I never said the kids went on the picnic
Source: https://riddles.com/index.php/4416