Mak Yan Kei Problem Index
Headmaster's Headache
Dora Trip
Fractions Again?!
Enchanted Forest
Let's Play Magic!
How Many Triangles?
Lowest Price in Town
Moliu Fractions
Power of Matrix
Colourful Flowers
Museums
Number Theory for Newbies
Arranging a Contest
Happy Birthday
Matches
Simple Equations
Let's Yum Cha!
Moliu Number Generator
Pincer Attack!!
Sudoku without numbers?
Simple Equations - Extreme!!
Soya Milk
Closest Fractions
Farther or Closer
Chutes and Ladders
Tape Recording
An Amazing Race