Perfect — let’s keep the brain gym going. 🏋️🧠
Here are a few in the same spirit:

1. The Hospital Mystery
A man went to the hospital. The doctor saw him and immediately knew he was his son. But the man was not the doctor’s son.
How is this possible?

The doctor is his mother.

2. The Coin Conundrum
I have two coins that add up to 30 cents. One of them is not a nickel.
How is this possible?

One is a nickel — I just said one of them is not. The other coin is a quarter.

3. The Room with No Doors
You enter a room with only a table and a mirror. You look in the mirror and see what you saw. You take the saw, cut the table in half, two halves make a whole, and you crawl out the hole.
What just happened?

It’s all wordplay — no real escape, just punny nonsense.

That’s a classic riddle! 😄

The trick is in the wording:

“There’s not a single person on board.”

It doesn’t mean the boat is empty — it means all the people on board are married (so no “single” people).

So yes — the boat is full, but not with any single people.

As of mid‑2025, 29 U.S. states plus Washington, D.C. require both a front and a rear license plate to be displayed on most passenger vehicles (snowbirdaccidents.com).

🏛️ States Requiring Both Front & Rear Plates

California
Colorado
Connecticut
Hawaii
Idaho
Illinois
Iowa
Maine
Maryland
Massachusetts (note: older plates issued before ~1993 may remain rear-only, but modern registrations require two) (Wikipedia, Wikipedia)
Minnesota
Missouri
Montana
Nebraska
Nevada (front plates are optional if the vehicle wasn't designed with a bracket or manufacturer's provision) (Brilliant Maps, Wikipedia)
New Hampshire
New Jersey
New York
North Dakota
Oregon
Rhode Island
South Dakota
Texas
Utah (through December 31, 2024; requirement removed effective January 1, 2025) (World Population Review, Team Justice, Sighthound)
Vermont
Virginia
Washington
Wisconsin
Wyoming
Washington, D.C.

📝 Notes & Exceptions

• In Utah, the front plate requirement was officially removed, effective January 1, 2025, as part of legislative changes (World Population Review).

• Some states may offer exemptions for vehicle types such as historic/classic vehicles, motorcycles, trailers, or vehicles without manufacturer-provided front bracket, even within two‑plate jurisdictions (e.g. Massachusetts, Nevada, etc.) (Wikipedia).

• Massachusetts continues to recognize pre‑1978 rear‑only plates (now grandfathered), but new registrations require front and rear plates since the early 1990s (Wikipedia).

• In Nevada, if the vehicle was not sold with a provision for a front plate, the front plate requirement may not be enforced—though legally it's a two‑plate state in theory (Brilliant Maps, Wikipedia).

✅ Summary Table

🚓 How LPR Works for Parking Enforcement

1. Automatic Plate Scanning

• Cameras mounted on the enforcement vehicle scan parked cars as the vehicle patrols.

• The system reads license plates using OCR (optical character recognition) and captures timestamp and GPS location. (Beaverton Police Department, Passport)

2. Real-Time Database Checks

• Plates are cross-referenced with live permit, payment, and outstanding violation records.

• The system flags expired meters, invalid or absent permits, or unpaid citations. (Passport, OperationsCommander)

3. Virtual Chalking & Time-Limit Monitoring

• Instead of manual chalk marks, the system digitally tracks how long vehicles stay in timed zones.

• If a car exceeds allowable time (e.g. 2-hour parking), the officer receives an alert. (OperationsCommander, Leonardo)

4. Issuing Citations

• Officers add notes and photographic evidence.

• Citations can be printed on the spot or processed later; sometimes mailed like Beaverton’s photo-red-light citations. (Passport, Beaverton Police Department)

5. Backend Data Management

• All logs—plate scans, timestamps, geolocation—sync to a cloud-based backend.

• Administrators can generate reports, analyze parking compliance trends, and manage appeals. (Passport)

🔍 Beaverton’s Use of Camera Enforcement

While Beaverton Police clearly utilize cameras for traffic enforcement (e.g. red-light running, speeding via photo radar vans) (Beaverton Oregon), information specific to parking enforcement with LPR camera vans wasn't publicly detailed. However:

• The City operates a Parking Compliance Pilot Program downtown, which may involve tools like digital enforcement in mobile vehicles. (OperationsCommander, Beaverton Oregon)

• The Traffic Division maintains a full enforcement unit and a photo enforcement coordinator. (Beaverton Police Department)

So while not explicitly confirmed, it’s likely that if LPR is used for parking, it follows the model described above.

🧾 Summary Table

📌 Citations & Privacy

• Beaverton’s photo enforcement program for speeding and red-light issues includes vendor review, officer approval, and mailed citations within six business days. (Passport, Beaverton Oregon, Beaverton Police Department, OperationsCommander, Beaverton Police Department)

• Broader LPR functionality is well documented in parking enforcement systems across the U.S., including electronic chalking and permit checks. (Passport, OperationsCommander)

• Policies in Oregon generally regulate how long license plate data may be stored and restrict mass surveillance misuse. (oregon.gov)

✅ In Summary

A parking enforcement vehicle with an LPR system in Beaverton would automatically scan license plates, check for valid meter payments or permits, monitor timing violations digitally, and issue citations supported by timestamped photos and location data. The data syncs to a backend system for enforcement tracking, appeals, and reporting—resulting in faster, more accurate, and more scalable enforcement than manual chalking or ticket writing.