INDEX — FULL CATALOG
| 001 | LIAR PARADOX | PARADOX |
| 002 | 0.999… = 1 | MATH |
| 004 | HILBERT'S HOTEL | PARADOX |
| 005 | SELF-REFUTATION | PARADOX |
| 006 | SHIP OF THESEUS | PARADOX |
| 009 | MONTY HALL | MATH |
| 010 | INFINITE ARITHMETIC | MATH |
| 023 | BIRTHDAY PARADOX | PARADOX |
| 026 | IRON | CHEMISTRY |
| 137 | FINE-STRUCTURE CONSTANT | PHYSICS |
| 150 | DUNBAR'S NUMBER | HUMAN |
| 404 | MEANING NOT FOUND | CODE |
| 499 | LIGHT DELAY | SPACE |
| 1729 | HARDY–RAMANUJAN | NUMBERS |
| 1895 | ALEPH-NULL | MATH |
| 1969 | LO | HISTORY |
| 6174 | KAPREKAR'S CONSTANT | NUMBERS |