Every mystery has an answer.
Read a strange story. Ask the AI anything with a yes-or-no answer. Piece together what really happened, from forgotten history to wild science.
Can you crack this one?
In the app you ask the AI questions. Here you can reveal the hints one at a time. Use as few as you can.
HistoryThe Hated Gentleman
In 1750s London, a gentleman walked the streets on rainy days carrying a strange object over his head. People laughed at him, and coach drivers shouted insults and even tried to run him over. He wasn't breaking any law and wasn't hurting anyone. Why did the drivers hate him so much?
He was carrying an umbrella. Coach drivers made money from people hiring coaches to escape the rain. If everyone walked under umbrellas, they'd lose customers, so they mocked and harassed him.
True story. Jonas Hanway carried an umbrella in London for around 30 years, starting in the 1750s. He was ridiculed at first, but by his death in 1786, umbrellas had become common for men too.
Pick your kind of mystery
Science
Strange things nature and physics really do.
History
Real events that sound made up.
Crime
Clever crooks and very strange cases.
Horror
Dark, eerie and mostly true.
Outdoor & Survival
What would you do to stay alive?
Fun Facts
Everyday things with surprising twists.
Every story has its own scene
Each mystery comes with an illustration that sets the mood without giving the answer away.
Three steps. One truth.
Read the story
Every mystery starts with a short, strange situation. Something doesn't add up. Notice every detail.
Ask questions
Ask anything with a yes-or-no answer. The AI knows the whole story and replies Yes, No or Not relevant. Stuck? Open a hint.
Reveal your theory
Type what you think happened. Get it right and you unlock the full answer and the real story behind it.
The next case file opens in
Fresh mysteries arrive on the 1st of every month.
Questions? We have answers.
Is Riddle Mind free?
Yes. Free players unlock each story, each hint and every new set of 25 questions by watching a short video ad that they start themselves. There are no banner or pop-up ads. Riddle Mind Premium is a one-time purchase (no subscription): no ads to start stories, 10,000 AI questions and hints without ads.
How does the AI answer?
The AI knows the full story behind each mystery. Ask it any yes-or-no question and it replies Yes, No or Not relevant, just like a game master.
Are the stories real?
Many are based on true events from history, science and the news. Those stories end with a short note on what really happened.
When can I play?
Riddle Mind is coming to Android and iOS. Leave your email below and we'll tell you on launch day.
Is it suitable for kids?
Some stories deal with crime and horror, so Riddle Mind is made for teens and adults aged 13 and up.
Which languages are available?
Riddle Mind launches in English.
Be the first to solve it
Get one email on launch day. No spam.