Ballpark #4 · Tuesday, November 3, 2026

The 13-inch iPad Pro with the M4 chip, the Grand Canyon and more

The Tuesday, November 3, 2026 puzzle: five questions, each with a number for an answer. How close can you get?

How many millions of troy ounces of gold are stored at Fort Knox?As of 2025
How thick is the 13-inch iPad Pro with the M4 chip, in millimetres?Depth of the tablet itself
How long is the Grand Canyon, following the Colorado River through it?Length of the canyon in kilometres
About how many warriors are estimated to be buried with China's First Emperor?Estimated total, Terracotta Army
How many permanent teeth make up a full adult set, wisdom teeth included?

205 players finished Ballpark #4. Average score: 538 of 1,000; 2% scored 800 or more.

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Show answers

🏦 How many millions of troy ounces of gold are stored at Fort Knox?147.3 million oz
The books value that gold at a statutory $42.22 an ounce, about $6.2 billion, far below its market price.
Sources: en.wikipedia.org · coinworld.com
📲 How thick is the 13-inch iPad Pro with the M4 chip, in millimetres?5.1 mm
Apple launched it in 2024 billing it as the thinnest product it had ever made.
Sources: support.apple.com · en.wikipedia.org
🏜️ How long is the Grand Canyon, following the Colorado River through it?446 km
The canyon is up to 29 km wide, and its exposed rock layers record close to two billion years of Earth's history.
Sources: en.wikipedia.org · nps.gov
🏺 About how many warriors are estimated to be buried with China's First Emperor?8,000 warriors
Each face looks different, and the figures were once brightly painted, but most of the colour flaked off after digging.
Sources: en.wikipedia.org · worldhistory.org
🦷 How many permanent teeth make up a full adult set, wisdom teeth included?32 teeth
Children grow just 20 baby teeth first, and many adults never get all four of their wisdom teeth.
Sources: en.wikipedia.org · kidshealth.org