Select Problems

Problems for Selected Year(s)

• Only Odd Digits - November 18, 2024
• Third Side of a Triangle - November 11, 2024
• Six Even Numbers - November 04, 2024
• Nines - October 21, 2024
• 345 - October 14, 2024
• 1234 - October 07, 2024
• Sides - September 30, 2024
• Cutting Wood - September 23, 2024
• Fives in Prime - September 16, 2024
• Ones - September 09, 2024
• Multiples of Nine - September 02, 2024
• Very Old - August 26, 2024
• Quarters and Dimes - August 19, 2024
• How Many Primes - August 12, 2024
• Next Number Up - August 05, 2024
• Five Elements - July 29, 2024
• Not 102 - July 22, 2024
• Evens and Odds to 502 - July 15, 2024
• Pounds and Pounds of Pennies - July 08, 2024
• Big Hole - July 01, 2024
• Glazed Donuts - June 24, 2024
• 4 or 13 - June 17, 2024
• Palindromic Year - June 10, 2024
• Operation - June 03, 2024
• Digits - May 27, 2024