Mathematical mysteries
Professor Stewart's casebook of mathematical mysteries
The world's most famous math problem
Discrete mathematics
Mathematical mystery tour
Islands of Truth
A Mathematical Mystery Tour
Molly and the Mathematical Mysteries
Mathematics, magic and mystery
The music of the primes
Mage Merlin's Unsolved Mathematical Mysteries
Mathematical Mysteries
Mathematical Mystery Tour
The Number Mysteries
Mathematical Mysteries of Alphabets
A Mathematical mystery tour.
Mathematical Mystery Tour Volume II
Mathematical Mystery Tour Volume II
Mathematical Mystery Tour Vol II
Mathematical Mystery Tour Volume I