• WELCOME
  • parkrun STATS
  • PUZZLE of the WEEK
  • SOLUTIONS
  • PUZZLE BOOKS
  • STUFF
Menu

elliottline.com

Street Address
City, State, Zip
Phone Number

Your Custom Text Here

elliottline.com

  • WELCOME
  • parkrun STATS
  • PUZZLE of the WEEK
  • SOLUTIONS
  • PUZZLE BOOKS
  • STUFF

Puzzle of the Week #554 - Fiftieth Birthday

February 6, 2026 Elliott Line

If a person is born at a random point in a 400 year period, roughly what is the probability that their fiftieth birthday will be on the same day of the week as they were born?

← Puzzle of the Week #555 - Regular NonagonPuzzle of the Week #553 - Unknown Primes →
Summary Block
This block is invalid. Please check the block settings and try again.
Featured
Aenean eu leo Quam
Aenean eu leo Quam

Quisque iaculis facilisis lacinia. Mauris euismod pellentesque tellus sit amet mollis.

Read more →

Powered by Squarespace