Today’s Wow ChallengePredict. Discover. Reflect.

Three questions are prepared each day from published rules for temperature, regional PM2.5 and HDB car lots. Results use dated observations from NEA and HDB through data.gov.sg. Questions and rules are fixed before you pick. A background check runs daily; visiting this page also checks due results, at most once every 15 minutes.

Checks begin 20 minutes after the observation time. We retry missing or stale readings for up to 48 hours. If no qualifying observation can be verified, the question is marked “Couldn’t verify” and excluded from your matched results. We never turn missing data into a No.

Your picks are saved on our server under a random browser identifier in a secure, essential cookie. No name, email or login is needed. History belongs to this browser and does not sync between devices. Clearing cookies removes your access to it. You can use “Forget my picks” to delete this browser’s saved picks. Picks are shown for 90 days; older records are removed during routine updates.

No. These are short prediction activities about specific observations, not professional forecasts or advice. A parking reading cannot reserve a space. Check current official guidance before planning travel, parking or outdoor activity.

There are no cash prizes, coupons, paid entries, tradable points or subscriptions. Getting it right is a small discovery; getting it wrong is another chance to learn. No purchase is required.