We play this board game called Wits and Wagers at my parents house when we go visit. The premise is you have to answer a question with a numerical response (example: in feet how tall was the biggest sandcastle ever built) and then once everyone has written down their response each person has 2 betting tokens one worth one point and one worth two points which you can now use to bet on any of the responses, including your own. Answer is revealed and whoever is closest gets one point plus whoever has tokens on top of that answer get the according points.

Usually my daughter plays with me and I try to reason with her but occasionally we let her play on her own and it's absolutely hilarious the random, extreme numbers she comes up with. And of course everyone laughs and says wow good guess and that emboldens her more to come up with even crazier answers.