Magic trick (in General) Rating: 4.17 Posted on 2007-05-11 by atheron (No Solution Yet, 51 Comments)
Greatest value (in Numbers) Rating: 5.00 Posted on 2007-02-02 by atheron (Solution Posted, 2 Comments)
Fatal Guess (in Probability) Rating: 3.71 Posted on 2007-01-29 by atheron (No Solution Yet, 15 Comments)
Function Challenge (in Just Math) Rating: 3.50 Posted on 2007-01-27 by atheron (Solution Posted, 3 Comments)
Numbered Cube (in Numbers) Rating: 4.00 Posted on 2007-01-26 by atheron (No Solution Yet, 3 Comments)
Difficulties with hotel rooms (in General) Rating: 4.00 Posted on 2007-01-25 by atheron (No Solution Yet, 21 Comments)
Factors and Primes (in Numbers) Rating: 4.67 Posted on 2007-01-24 by atheron (No Solution Yet, 4 Comments)
Number power (in Numbers) Rating: 4.00 Posted on 2006-12-30 by atheron (No Solution Yet, 5 Comments)
Floor function and primes (in Numbers) Posted on 2006-12-09 by atheron (No Solution Yet, 5 Comments)
Colourful set (in Sequences) Rating: 4.25 Posted on 2006-12-06 by atheron (No Solution Yet, 6 Comments)
Faraday's experiment (in Science) Rating: 4.00 Posted on 2006-10-20 by atheron (No Solution Yet, 9 Comments)
Looking for functions (in Just Math) Rating: 3.20 Posted on 2006-10-18 by atheron (No Solution Yet, 8 Comments)
Can you find this kind of function? (in Tricks) Rating: 3.50 Posted on 2006-08-28 by atheron (No Solution Yet, 10 Comments)
Are all complex numbers real? (in Paradoxes) Rating: 3.75 Posted on 2006-08-24 by atheron (No Solution Yet, 14 Comments)
LCM Sequence (in Sequences) Rating: 4.00 Posted on 2006-08-19 by atheron (No Solution Yet, 7 Comments)
Points on a plane (in Geometry) Rating: 4.00 Posted on 2006-08-18 by atheron (No Solution Yet, 5 Comments)
Picking cards (in Probability) Rating: 3.00 Posted on 2006-08-17 by atheron (No Solution Yet, 8 Comments)
Object sliding (in Science) Rating: 4.00 Posted on 2006-08-01 by atheron (No Solution Yet, 9 Comments)
