Mathematical Puzzles

Risse T.

Table of contents :
Table of Contents……Page 2
0 Introduction……Page 4
• Measuring with Two Jugs……Page 5
• Races……Page 6
• Census and its Boycott……Page 7
• Zig-Zag between Trains……Page 8
• Outward and Return Journey……Page 9
• Magic Squares……Page 10
• No Talk about Money……Page 11
• Equal Opportunities……Page 12
• Two and More Eyes……Page 13
• Fermat-Numbers……Page 14
• Euler-Numbers……Page 15
• Mersenne-Numbers……Page 16
• Crucial is What is Left Over……Page 17
• Computing With Remaindes……Page 18
• Adroit Computing With Remaindes……Page 19
• Euclid & little Fermat……Page 20
• Fermat, Euler and More……Page 21
• Chinese Stuff……Page 22
• Caesar and Cohorts……Page 23
• Caesar in General……Page 24
• Vigenère and Konsorten……Page 25
• Permutations……Page 26
• DES……Page 27
• Public Keys?……Page 28
• RSA……Page 29
• Cards & Goats……Page 30
• Algorithms to Generate Chance?……Page 31
• What is Randomness?……Page 32
6 Sources and Links……Page 33
Solutions to Problems……Page 35