Ask HN: What are your favourite brain teasers?

Heykuki News

1 point

6 years ago

The 23 prisoner problem is a personal favourite of mine, I always felt the solution was so clever.

https://io9.gizmodo.com/either-you-solve-this-riddle-or-you-die-1653822870

What brain teasers made you "aha!" when you got them?

Ask HN: What are your favourite brain teasers? | Heykuki News