"Challenging riddles designed to push your brain to its limits. Secret History uncovers the forgotten, mind-blowing facts ...

Browse 3,500+ mystery riddles stock illustrations and vector graphics available royalty-free, or start a new search to explore more great stock images and vector art. Silhouette of the famous private ...

Do you have what it takes to solve these 7 mind-bending riddles? Only the smartest 5% can figure them all out! From tricky ...

Can you guess the country name in 5 seconds? Improve your cognitive skills with the picture puzzles and sharpen your mind and ...

GET /category/number Get specified no. of riddles. POST /category Add a new riddle. PATCH /category/id Update an existing riddle. DELETE /category/id Deletes an ...