Ready to test your limits? Read on for the top 75 hardest riddles with answers, each carefully chosen to challenge even the most seasoned riddle-solvers. Answer: Bookkeeper. Answer: SWIMS.

Hard riddles like this are tricky because they seem ... This one has a simple answer even though it stumps most people who try to figure it out. Wet and dry seem like they always have to be ...

The self-proclaimed "hardest riddle available on the internet" lives up to its name. It's called Notpron, and since the website's launch in 2004, over 16 million people have tried to get to solve ...