The Unsolvable Paradoxes

1. The Barber Paradox

A barber who cannot cut his own hair is a paradox. If he cannot cut his own hair, is he still a barber? Or is he just a guy with a lot of hair?

Learn more about this paradox Buridan's Paradox Tolerance Paradox

The Unsolved Decisions

1. The Sorites Paradox

A single grain of sand is not a heap, but add a few more grains and it's a heap. Where is the exact point of no return?

Sorites Paradox Zeno's Paradox Many Worlds Paradox

The Puzzles of Existence

1. The Brain Teaser Paradox

What is the point of this page? Is it to make you question the nature of reality or just to sell you ads?

More Brain Teasers Ontological Paradox Ontological Paradoxes