Terrific sequence 3 (in Sequences) Rating: 5.00
Posted on 2024-02-04 by Math Man (No Solution Yet, 4 Comments)
Posted on 2024-02-04 by Math Man (No Solution Yet, 4 Comments)
Liz's lying day (in Logic) Rating: 4.00
Posted on 2024-01-08 by Math Man (No Solution Yet, 1 Comments)
Posted on 2024-01-08 by Math Man (No Solution Yet, 1 Comments)
An insane puzzle (in Liars and Knights) Rating: 5.00
Posted on 2023-11-11 by Math Man (No Solution Yet, 9 Comments)
Posted on 2023-11-11 by Math Man (No Solution Yet, 9 Comments)
Math in letters 2 (in Just Math) Rating: 4.67
Posted on 2023-10-04 by Math Man (No Solution Yet, 4 Comments)
Posted on 2023-10-04 by Math Man (No Solution Yet, 4 Comments)
Logic of pets (in Logic) Rating: 4.50
Posted on 2023-08-21 by Math Man (No Solution Yet, 5 Comments)
Posted on 2023-08-21 by Math Man (No Solution Yet, 5 Comments)
Sick flick (in Word Problems) Rating: 5.00
Posted on 2023-07-08 by Math Man (No Solution Yet, 4 Comments)
Posted on 2023-07-08 by Math Man (No Solution Yet, 4 Comments)
Types of Transportation (in Word Problems)
Posted on 2023-03-05 by Math Man (No Solution Yet, 1 Comments)
Posted on 2023-03-05 by Math Man (No Solution Yet, 1 Comments)
Three digits (in Numbers) Rating: 5.00
Posted on 2023-01-10 by Math Man (No Solution Yet, 4 Comments)
Posted on 2023-01-10 by Math Man (No Solution Yet, 4 Comments)
Mystery sequence (in Sequences) Rating: 5.00
Posted on 2022-10-13 by Math Man (No Solution Yet, 8 Comments)
Posted on 2022-10-13 by Math Man (No Solution Yet, 8 Comments)
Many types (in Liars and Knights) Rating: 5.00
Posted on 2022-09-03 by Math Man (No Solution Yet, 1 Comments)
Posted on 2022-09-03 by Math Man (No Solution Yet, 1 Comments)
2^n mod n (in Just Math) Rating: 4.00
Posted on 2022-05-13 by Math Man (No Solution Yet, 3 Comments)
Posted on 2022-05-13 by Math Man (No Solution Yet, 3 Comments)
Pi Day (in Word Problems) Rating: 4.50
Posted on 2022-03-14 by Math Man (No Solution Yet, 4 Comments)
Posted on 2022-03-14 by Math Man (No Solution Yet, 4 Comments)
Five sentences (in Logic) Rating: 5.00
Posted on 2022-02-09 by Math Man (No Solution Yet, 3 Comments)
Posted on 2022-02-09 by Math Man (No Solution Yet, 3 Comments)
Time After Time (in Numbers) Rating: 4.00
Posted on 2022-01-11 by Math Man (No Solution Yet, 2 Comments)
Posted on 2022-01-11 by Math Man (No Solution Yet, 2 Comments)
Calculating the Inverse Rule (in Calculus) Rating: 4.00
Posted on 2021-11-26 by Math Man (No Solution Yet, 1 Comments)
Posted on 2021-11-26 by Math Man (No Solution Yet, 1 Comments)
Restaurant Rock and Roll (in Word Problems) Rating: 4.00
Posted on 2021-10-22 by Math Man (No Solution Yet, 4 Comments)
Posted on 2021-10-22 by Math Man (No Solution Yet, 4 Comments)
Legally Blonde 2 (in Liars and Knights) Rating: 3.67
Posted on 2021-09-13 by Math Man (No Solution Yet, 4 Comments)
Posted on 2021-09-13 by Math Man (No Solution Yet, 4 Comments)
Good sequence (in Sequences) Rating: 3.50
Posted on 2021-07-26 by Math Man (No Solution Yet, 4 Comments)
Posted on 2021-07-26 by Math Man (No Solution Yet, 4 Comments)
Liar Logic 2 (in Liars and Knights) Rating: 4.00
Posted on 2021-06-21 by Math Man (No Solution Yet, 3 Comments)
Posted on 2021-06-21 by Math Man (No Solution Yet, 3 Comments)
Pandigital powers 2 (in Numbers) Rating: 4.50
Posted on 2021-05-04 by Math Man (No Solution Yet, 3 Comments)
Posted on 2021-05-04 by Math Man (No Solution Yet, 3 Comments)
Pandigital powers (in Numbers) Rating: 5.00
Posted on 2021-04-07 by Math Man (No Solution Yet, 6 Comments)
Posted on 2021-04-07 by Math Man (No Solution Yet, 6 Comments)
Tom and Jerry (in Logic) Rating: 5.00
Posted on 2021-02-16 by Math Man (No Solution Yet, 3 Comments)
Posted on 2021-02-16 by Math Man (No Solution Yet, 3 Comments)
Literary apparel (in Word Problems) Rating: 5.00
Posted on 2021-01-14 by Math Man (No Solution Yet, 2 Comments)
Posted on 2021-01-14 by Math Man (No Solution Yet, 2 Comments)
Neighboring Countries (in Word Problems)
Posted on 2020-11-05 by Math Man (No Solution Yet, 3 Comments)
Posted on 2020-11-05 by Math Man (No Solution Yet, 3 Comments)
Pages and Squires 2 (in Liars and Knights)
Posted on 2020-10-08 by Math Man (No Solution Yet, 2 Comments)
Posted on 2020-10-08 by Math Man (No Solution Yet, 2 Comments)
Elementary nationality (in Tricks) Rating: 5.00
Posted on 2020-07-22 by Math Man (No Solution Yet, 2 Comments)
Posted on 2020-07-22 by Math Man (No Solution Yet, 2 Comments)
Math in letters (in Just Math) Rating: 4.00
Posted on 2020-06-01 by Math Man (No Solution Yet, 5 Comments)
Posted on 2020-06-01 by Math Man (No Solution Yet, 5 Comments)
Pokemon Puzzle (in Word Problems) Rating: 4.00
Posted on 2020-05-01 by Math Man (No Solution Yet, 1 Comments)
Posted on 2020-05-01 by Math Man (No Solution Yet, 1 Comments)
Coded Crossword 3 (in Cryptography) Rating: 4.50
Posted on 2020-02-21 by Math Man (No Solution Yet, 4 Comments)
Posted on 2020-02-21 by Math Man (No Solution Yet, 4 Comments)
Company Conundrum 2 (in Word Problems) Rating: 5.00
Posted on 2019-12-20 by Math Man (No Solution Yet, 3 Comments)
Posted on 2019-12-20 by Math Man (No Solution Yet, 3 Comments)
Tricky sequence (in Sequences) Rating: 5.00
Posted on 2019-11-04 by Math Man (No Solution Yet, 2 Comments)
Posted on 2019-11-04 by Math Man (No Solution Yet, 2 Comments)
Timothy and Elizabeth (in Liars and Knights) Rating: 2.50
Posted on 2019-09-23 by Math Man (No Solution Yet, 4 Comments)
Posted on 2019-09-23 by Math Man (No Solution Yet, 4 Comments)
No primes 3 (in Numbers) Rating: 5.00
Posted on 2019-08-10 by Math Man (No Solution Yet, 2 Comments)
Posted on 2019-08-10 by Math Man (No Solution Yet, 2 Comments)
Synonyms (in Word Problems) Rating: 4.00
Posted on 2019-07-01 by Math Man (Solution Posted, 5 Comments)
Posted on 2019-07-01 by Math Man (Solution Posted, 5 Comments)
Crossword puzzles (in Algorithms) Rating: 5.00
Posted on 2019-05-21 by Math Man (No Solution Yet, 10 Comments)
Posted on 2019-05-21 by Math Man (No Solution Yet, 10 Comments)
A change of clothes (in Word Problems) Rating: 5.00
Posted on 2019-03-08 by Math Man (No Solution Yet, 3 Comments)
Posted on 2019-03-08 by Math Man (No Solution Yet, 3 Comments)
The 100th number (in Sequences) Rating: 5.00
Posted on 2018-12-10 by Math Man (Solution Posted, 9 Comments)
Posted on 2018-12-10 by Math Man (Solution Posted, 9 Comments)
Lefties and righties 2 (in Logic) Rating: 3.00
Posted on 2018-09-11 by Math Man (No Solution Yet, 4 Comments)
Posted on 2018-09-11 by Math Man (No Solution Yet, 4 Comments)
Prime records (in Sequences) Rating: 4.50
Posted on 2018-04-06 by Math Man (No Solution Yet, 5 Comments)
Posted on 2018-04-06 by Math Man (No Solution Yet, 5 Comments)
A prime nonuplet (in Numbers) Rating: 5.00
Posted on 2017-12-27 by Math Man (No Solution Yet, 4 Comments)
Posted on 2017-12-27 by Math Man (No Solution Yet, 4 Comments)
Prime power puzzle (in Just Math) Rating: 5.00
Posted on 2017-04-01 by Math Man (Solution Posted, 9 Comments)
Posted on 2017-04-01 by Math Man (Solution Posted, 9 Comments)
Fibonacci Fib (in Sequences) Rating: 5.00
Posted on 2017-02-23 by Math Man (No Solution Yet, 1 Comments)
Posted on 2017-02-23 by Math Man (No Solution Yet, 1 Comments)
An interesting recurrence (in Numbers) Rating: 5.00
Posted on 2017-01-17 by Math Man (No Solution Yet, 5 Comments)
Posted on 2017-01-17 by Math Man (No Solution Yet, 5 Comments)
Legally Blonde (in Liars and Knights) Rating: 3.00
Posted on 2016-12-19 by Math Man (No Solution Yet, 10 Comments)
Posted on 2016-12-19 by Math Man (No Solution Yet, 10 Comments)
Terrific sequence 2 (in Sequences) Rating: 5.00
Posted on 2016-11-20 by Math Man (No Solution Yet, 2 Comments)
Posted on 2016-11-20 by Math Man (No Solution Yet, 2 Comments)
A surprising prime gap (in Numbers) Rating: 5.00
Posted on 2016-07-27 by Math Man (Solution Posted, 8 Comments)
Posted on 2016-07-27 by Math Man (Solution Posted, 8 Comments)
Terrific sequence (in Sequences) Rating: 5.00
Posted on 2016-05-10 by Math Man (No Solution Yet, 6 Comments)
Posted on 2016-05-10 by Math Man (No Solution Yet, 6 Comments)
Primevens and primeodds (in Numbers) Rating: 4.00
Posted on 2016-01-10 by Math Man (Solution Posted, 8 Comments)
Posted on 2016-01-10 by Math Man (Solution Posted, 8 Comments)
Numbered Letters IV (in Word Problems)
Posted on 2015-10-26 by Math Man (No Solution Yet, 3 Comments)
Posted on 2015-10-26 by Math Man (No Solution Yet, 3 Comments)
Marissa's and Melissa's birthdays (in Logic)
Posted on 2015-09-17 by Math Man (No Solution Yet, 1 Comments)
Posted on 2015-09-17 by Math Man (No Solution Yet, 1 Comments)
Lefties and righties (in Logic) Rating: 4.67
Posted on 2015-06-10 by Math Man (Solution Posted, 4 Comments)
Posted on 2015-06-10 by Math Man (Solution Posted, 4 Comments)
Island Adventure 2 (in Liars and Knights) Rating: 3.00
Posted on 2015-04-21 by Math Man (No Solution Yet, 4 Comments)
Posted on 2015-04-21 by Math Man (No Solution Yet, 4 Comments)
Island Adventure (in Liars and Knights) Rating: 3.00
Posted on 2015-03-26 by Math Man (No Solution Yet, 3 Comments)
Posted on 2015-03-26 by Math Man (No Solution Yet, 3 Comments)
Composite prime (in Numbers) Rating: 5.00
Posted on 2015-02-24 by Math Man (Solution Posted, 2 Comments)
Posted on 2015-02-24 by Math Man (Solution Posted, 2 Comments)
Number machine problem 2 (in Algorithms) Rating: 3.00
Posted on 2014-12-02 by Math Man (Solution Posted, 3 Comments)
Posted on 2014-12-02 by Math Man (Solution Posted, 3 Comments)
Odd people 2 (in Liars and Knights) Rating: 2.67
Posted on 2014-10-07 by Math Man (Solution Posted, 2 Comments)
Posted on 2014-10-07 by Math Man (Solution Posted, 2 Comments)
Stranger Danger (in Famous Riddles) Rating: 3.00
Posted on 2014-08-25 by Math Man (No Solution Yet, 1 Comments)
Posted on 2014-08-25 by Math Man (No Solution Yet, 1 Comments)
Keys and boxes (in Logic) Rating: 2.50
Posted on 2014-07-31 by Math Man (Solution Posted, 4 Comments)
Posted on 2014-07-31 by Math Man (Solution Posted, 4 Comments)
Colorful hats (in Logic) Rating: 2.50
Posted on 2014-04-16 by Math Man (Solution Posted, 6 Comments)
Posted on 2014-04-16 by Math Man (Solution Posted, 6 Comments)
In pi at last (in Sequences) Rating: 4.00
Posted on 2014-03-24 by Math Man (Solution Posted, 3 Comments)
Posted on 2014-03-24 by Math Man (Solution Posted, 3 Comments)
Coded Crossword 2 (in Cryptography) Rating: 5.00
Posted on 2014-01-24 by Math Man (Solution Posted, 3 Comments)
Posted on 2014-01-24 by Math Man (Solution Posted, 3 Comments)
Unitary perfect numbers (in Just Math) Rating: 5.00
Posted on 2013-12-16 by Math Man (Solution Posted, 10 Comments)
Posted on 2013-12-16 by Math Man (Solution Posted, 10 Comments)
Great sequence (in Sequences) Rating: 5.00
Posted on 2013-11-28 by Math Man (No Solution Yet, 3 Comments)
Posted on 2013-11-28 by Math Man (No Solution Yet, 3 Comments)
Knaves! 2 (in Liars and Knights) Rating: 3.00
Posted on 2013-10-22 by Math Man (Solution Posted, 3 Comments)
Posted on 2013-10-22 by Math Man (Solution Posted, 3 Comments)
The Exclusive Club (in Paradoxes) Rating: 5.00
Posted on 2013-07-01 by Math Man (No Solution Yet, 8 Comments)
Posted on 2013-07-01 by Math Man (No Solution Yet, 8 Comments)
Liar Logic (in Liars and Knights) Rating: 5.00
Posted on 2013-04-11 by Math Man (Solution Posted, 3 Comments)
Posted on 2013-04-11 by Math Man (Solution Posted, 3 Comments)
Truthful days (in Logic) Rating: 2.00
Posted on 2013-01-31 by Math Man (Solution Posted, 4 Comments)
Posted on 2013-01-31 by Math Man (Solution Posted, 4 Comments)
Primary Problem 2 (in Just Math) Rating: 5.00
Posted on 2012-12-09 by Math Man (Solution Posted, 4 Comments)
Posted on 2012-12-09 by Math Man (Solution Posted, 4 Comments)
The way to Normalville (in Liars and Knights) Rating: 3.75
Posted on 2012-10-05 by Math Man (Solution Posted, 13 Comments)
Posted on 2012-10-05 by Math Man (Solution Posted, 13 Comments)
Metapuzzle (in Liars and Knights) Rating: 5.00
Posted on 2012-09-13 by Math Man (Solution Posted, 5 Comments)
Posted on 2012-09-13 by Math Man (Solution Posted, 5 Comments)
The number p (in Numbers) Rating: 4.00
Posted on 2012-08-19 by Math Man (No Solution Yet, 1 Comments)
Posted on 2012-08-19 by Math Man (No Solution Yet, 1 Comments)
Mutually friendly 3 (in Logic) Rating: 5.00
Posted on 2012-08-05 by Math Man (Solution Posted, 11 Comments)
Posted on 2012-08-05 by Math Man (Solution Posted, 11 Comments)
All 10 digits (in Probability) Rating: 5.00
Posted on 2012-07-06 by Math Man (Solution Posted, 5 Comments)
Posted on 2012-07-06 by Math Man (Solution Posted, 5 Comments)
Day-knights and night-knights 4 (in Logic) Rating: 3.00
Posted on 2012-07-02 by Math Man (Solution Posted, 2 Comments)
Posted on 2012-07-02 by Math Man (Solution Posted, 2 Comments)
Fruit prices (in Word Problems) Rating: 4.00
Posted on 2012-06-05 by Math Man (Solution Posted, 8 Comments)
Posted on 2012-06-05 by Math Man (Solution Posted, 8 Comments)
Cheating by not cheating (in Riddles) Rating: 5.00
Posted on 2012-05-30 by Math Man (Solution Posted, 15 Comments)
Posted on 2012-05-30 by Math Man (Solution Posted, 15 Comments)
Knaves! (in Liars and Knights) Rating: 4.00
Posted on 2012-05-21 by Math Man (Solution Posted, 4 Comments)
Posted on 2012-05-21 by Math Man (Solution Posted, 4 Comments)
Minimal Primes (in Numbers) Rating: 4.67
Posted on 2012-04-24 by Math Man (Solution Posted, 5 Comments)
Posted on 2012-04-24 by Math Man (Solution Posted, 5 Comments)
Redundant questions (in Word Problems) Rating: 5.00
Posted on 2012-03-19 by Math Man (Solution Posted, 11 Comments)
Posted on 2012-03-19 by Math Man (Solution Posted, 11 Comments)
Logical connectives (in Algorithms) Rating: 4.67
Posted on 2012-01-24 by Math Man (Solution Posted, 6 Comments)
Posted on 2012-01-24 by Math Man (Solution Posted, 6 Comments)
Prime or divisible by 3 (in Numbers) Rating: 4.00
Posted on 2011-12-23 by Math Man (Solution Posted, 1 Comments)
Posted on 2011-12-23 by Math Man (Solution Posted, 1 Comments)
Four people (in Liars and Knights) Rating: 4.00
Posted on 2011-11-28 by Math Man (Solution Posted, 3 Comments)
Posted on 2011-11-28 by Math Man (Solution Posted, 3 Comments)
Numbered Words (in Word Problems) Rating: 4.00
Posted on 2011-11-04 by Math Man (Solution Posted, 10 Comments)
Posted on 2011-11-04 by Math Man (Solution Posted, 10 Comments)
Coded Crossword (in Cryptography) Rating: 5.00
Posted on 2011-10-10 by Math Man (Solution Posted, 1 Comments)
Posted on 2011-10-10 by Math Man (Solution Posted, 1 Comments)
Two-digit numbers (in Sequences) Rating: 4.33
Posted on 2011-09-29 by Math Man (Solution Posted, 4 Comments)
Posted on 2011-09-29 by Math Man (Solution Posted, 4 Comments)
No primes 2 (in Numbers) Rating: 4.00
Posted on 2011-07-29 by Math Man (Solution Posted, 2 Comments)
Posted on 2011-07-29 by Math Man (Solution Posted, 2 Comments)
Superprimes (in Numbers) Rating: 3.00
Posted on 2011-07-18 by Math Man (Solution Posted, 2 Comments)
Posted on 2011-07-18 by Math Man (Solution Posted, 2 Comments)
Mutually friendly 2 (in Logic) Rating: 5.00
Posted on 2011-07-01 by Math Man (Solution Posted, 4 Comments)
Posted on 2011-07-01 by Math Man (Solution Posted, 4 Comments)
Knights and Liars of the Round Table (in Liars and Knights) Rating: 3.00
Posted on 2011-06-10 by Math Man (Solution Posted, 4 Comments)
Posted on 2011-06-10 by Math Man (Solution Posted, 4 Comments)
Interesting numbers (in Sequences) Rating: 3.00
Posted on 2011-06-07 by Math Man (Solution Posted, 3 Comments)
Posted on 2011-06-07 by Math Man (Solution Posted, 3 Comments)
Will I get a dog? (in Logic) Rating: 4.00
Posted on 2011-05-20 by Math Man (Solution Posted, 6 Comments)
Posted on 2011-05-20 by Math Man (Solution Posted, 6 Comments)
Joe's favorite number (in Liars and Knights) Rating: 4.00
Posted on 2011-04-27 by Math Man (Solution Posted, 4 Comments)
Posted on 2011-04-27 by Math Man (Solution Posted, 4 Comments)
Random number sequence (in Probability)
Posted on 2011-04-20 by Math Man (Solution Posted, 2 Comments)
Posted on 2011-04-20 by Math Man (Solution Posted, 2 Comments)
Factor numbers (in Just Math) Rating: 4.80
Posted on 2011-03-26 by Math Man (Solution Posted, 5 Comments)
Posted on 2011-03-26 by Math Man (Solution Posted, 5 Comments)
Day-knights and night-knights 3 (in Logic) Rating: 1.00
Posted on 2011-03-21 by Math Man (Solution Posted, 1 Comments)
Posted on 2011-03-21 by Math Man (Solution Posted, 1 Comments)
Prime times (in Numbers) Rating: 4.00
Posted on 2011-03-18 by Math Man (Solution Posted, 2 Comments)
Posted on 2011-03-18 by Math Man (Solution Posted, 2 Comments)
Day-knights and night-knights 2 (in Logic) Rating: 5.00
Posted on 2011-03-15 by Math Man (Solution Posted, 8 Comments)
Posted on 2011-03-15 by Math Man (Solution Posted, 8 Comments)
Day-knights and night-knights (in Logic) Rating: 3.00
Posted on 2011-03-08 by Math Man (Solution Posted, 4 Comments)
Posted on 2011-03-08 by Math Man (Solution Posted, 4 Comments)
A fun prime number (in Numbers) Rating: 5.00
Posted on 2011-02-15 by Math Man (Solution Posted, 4 Comments)
Posted on 2011-02-15 by Math Man (Solution Posted, 4 Comments)
Knave trial (in Liars and Knights) Rating: 4.50
Posted on 2011-02-03 by Math Man (Solution Posted, 1 Comments)
Posted on 2011-02-03 by Math Man (Solution Posted, 1 Comments)
A cool prime number (in Numbers) Rating: 4.00
Posted on 2011-01-27 by Math Man (Solution Posted, 3 Comments)
Posted on 2011-01-27 by Math Man (Solution Posted, 3 Comments)
Gold rush (in Liars and Knights) Rating: 4.50
Posted on 2011-01-24 by Math Man (Solution Posted, 3 Comments)
Posted on 2011-01-24 by Math Man (Solution Posted, 3 Comments)
A sequence (in Sequences) Rating: 3.50
Posted on 2011-01-14 by Math Man (Solution Posted, 3 Comments)
Posted on 2011-01-14 by Math Man (Solution Posted, 3 Comments)
X and Y (in Liars and Knights) Rating: 4.00
Posted on 2011-01-04 by Math Man (Solution Posted, 5 Comments)
Posted on 2011-01-04 by Math Man (Solution Posted, 5 Comments)