It might not seem like there's enough information to solve these logic puzzles—but that's part of the fun!

It’s that strange time of year, the lull between Christmas and New Year, when you’re not really celebrating but not really working either. So, how about you wrap your brain around the world’s hardest ...

You’re reading the first installment in a brand new puzzle series here at io9 – and what better way to kick things off than with the world’s most difficult ...

NYT Pips Game Answers Today: Today’s New York Times Pips puzzle for November 6, 2025, is packed with fresh challenges that’ll get your logic gears turning! Whether you’re a beginner easing into the ...

This conundrum continues to stump the wisest of puzzle buffs. However, there is some information here to help solve it. From our morning news briefing to a weekly Good News Newsletter, get the best of ...

If you are looking for engaging experiences that aren’t overwhelming, try the plethora of puzzle apps available. There are ...

While a doctoral student at Princeton University in 1957, studying under a founder of theoretical computer science, Raymond Smullyan would occasionally visit New York City. On one of these visits, he ...