Get An Auto Insurance Quote

Find out if you're eligible to save hundreds on your car insurance.

mystery number

Brain Teaser: What’s Your Number?

Allie Johnson

Nothing gets your brain’s gears turning like a person or thing that goes missing — from the upper half of George Washington’s false teeth to Flight 19 to the hijacker D.B. Cooper, who jumped from a plane carrying $200,000 in cash and vanished into the night.

Are you fascinated with missing things? If so, here’s a list of 10 things that vanished without a trace and have inspired armchair detectives to think up theories and dig for clues for years.

But if you want a missing thing that’s less difficult to locate, try our “What’s Your Number?” brain teaser. In this puzzle, you’ll see two grids containing six numbers each and a third grid with only five numbers. That final number in the last grid? It’s gone missing.

Fortunately for you, the first two grids contain enough clues to help you find the missing number and complete the final grid. There’s a logical relationship between the numbers that will point you in the right direction — if you can figure it out.

Brain teasers like this one require you to use logic, math skills and spatial reasoning to come up with an answer. This is not only intriguing and fun, but it’s good for your brain and can even boost creativity and happiness.

Think about this: when you solve a brain teaser, mystery or puzzle, you have what’s commonly known as an “Aha!” moment. In recent years, scientists have studied the brain activity of people doing puzzles, specifically to see what happens during one of these triumphant moments.

Scientists found that experiencing a “eureka!” (from the Greek for “I have found it!”) moment:

  • Activates structures deep in the brain
  • Fosters communication between different parts of the brain
  • Releases dopamine, a “feel good” chemical
  • Sparks alertness, exhilaration and joy
  • Promotes long-term memory and storage in the brain

So, go ahead and give the “What’s Your Number?” brain teaser a go to see if you can experience an “Aha!” moment of your own along with all of its benefits. Drop a comment below and let us know what you experienced when you solved the mystery of the missing number.

mystery number game

Were you able to solve it? Click here to double check your answer.

10 Responses to "Brain Teaser: What’s Your Number?"
    • Deb Provo | September 25, 2022 at 9:02 pm


    • Sherrie | September 5, 2022 at 8:52 am

      That was easy

    • Cecelia Y Sandifer | September 2, 2022 at 9:16 am

      I missed it! Post more so I can practice and get better.

    • DJ | August 30, 2022 at 8:13 am


    • Barney Vasquez | August 29, 2022 at 11:17 am


    • Virginia Boodhoo | August 28, 2022 at 4:33 pm

      I couldn’t find the answer. Post more, so I can get practice.

    • NM | August 28, 2022 at 10:21 am

      GOT my ‘AHA’ moment!

    • Sandra | August 26, 2022 at 6:58 pm

      I was excited that I figured it out.

    • delores crone | August 25, 2022 at 4:46 pm

      that was easy got it within 1.5 minutes

    • Dorothy Connors | August 25, 2022 at 1:32 pm

      I was satisfied that I could figure out the answer in reasonable time.

Leave a Reply

Disclaimer: Comments are subject to moderation and removal without cause or justification and may take up to 24 hours to be seen in comments. Your email address will not be published. Required fields are marked * Please do not include personal policy information; if you have questions or concerns regarding your policy with The Hartford, please log into your account or you can speak directly to a Customer Service Representative.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.