ODP - Open Directory Project
"The Open Directory Project is the largest, most comprehensive human-edited directory of the Web. It is constructed and maintained by a vast, global community of volunteer editors."
Games: Puzzles: Self-Referential_Sentences:
- Self-Referential Sentences - Exhaustive lists of "This sentence has three a's" sentences..
- Solve my base three numerical self-referential sentences puzzle! - The object of this difficult puzzle is to make four sentences mutually truthful by filling in base three numbers..
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