Preface I did not read the puzzle "The Hones, The Liar, And The Elusive" carefully and solved a slightly different puzzle (I realized it prior to posting an answer). Below find a self-contained version of my variant. The text is taken from the original one with differences being emphasized. Puzzl...

Here are 4 polygons which at least partly overlap with another polygon (shown in orange). We can calculate the interior point of each polygon furthest from the polygon's edge by finding the center of the maximum inscribed circle, as shown below. My question is, how can I find the interior point f...

Note: I created this puzzle. I met a girl that was born a few years ago. Her birth certificate has typo on her Date Of Birth (DOB), so her birth year looks like: She was born on a year that is actually a composite "typoed"-number year, but if that "typoed" year would have been prime, it will be ...

This is part 79 of the puzzle series Around the World in Many Days. Each part is solvable on its own. Dear Puzzling, Sometime during this trip I believe I have finally passed the milestone of 100 distinct countries visited. To celebrate, here’s a puzzle dealing with triple digits! The right-hand...