I enjoyed this puzzle so much that I created some mini versions of it for fun. I signed up to share them with everyone. The rules are the same: Each region with n cells contains all the numbers from 1 to n and if two cells with the same number k are on the same row or column then there are at lea...

A certain number of the 5000 members of the World Arithmetical Society (each of which has a different membership number between 1 and 5000) got together to discuss a problem. Much to their surprise, when they were lining up for lunch they discovered that their membership numbers formed a consecut...

This is an entry to the Fortnightly Topic Challenge #27: treasure-hunt. Steven the Stegosaurus has been kidnapped! It's now up to you to save him. When you enter Steven's cave, the only thing you can find is a note that Steven has left for you, along with a picture of him. Here it is: I...

The clues are out of order when decoded. What's the correct order? 1. A common color 2. A rank in the army 3. A popular candy bar 4. A publishing house 5. A roofer for cottage? 6. Orwells' true surname 7. An indisputable rule of science 8. A month of the year 9. Paradis on earth 10. An official s...

I need your help. I am the proud owner of 17 animals. Unfortunately they have all gone missing in the past few weeks and I have a feeling they could be hiding in the States somewhere. Can you help me retrieve them? $$\begin{array}{align*} \textbf{1a}&\text{South Carolina, California, Oregon, ...

Sue and Thomas both lived for 17916 days, although they were born in different years in the same calendar (the modern Gregorian one). Thomas was 2 days older than Sue when he died. How can this be? Sue was 49 years and 18 days old when she died Thomas was 49 years and 20 days old when he died

Hareraiser is an old game, released in the UK back in the 80s for several systems. It's created by the people that solved the book Masquerade (and offered the same prize). The game was never solved, and the prize had since been sold and currently resides with the original owner and creator of t...

And it comes with the message: S pe c tare su pra te What is the hidden message? I haven't been able to find it.

Hey some cryptic crossword clues to munch on 1) Information regarding loan in Dubai perhaps (7) 2) Some men deserve death (3) 3) Picture facing the past? (4,2,3,6)

As you continue down the corridor, you come across a door and panel, clearly left untouched for many years. Hoping to get lucky, you try the door but it is locked. On the panel is a line of 6 buttons, colored RED, ORANGE, YELLOW, GREEN, BLUE, and PURPLE. As you search, you notice writing in the d...

My friend Bill can get a bit "eccentric" if he doesn't take his medication, and I'm afraid he's off them again. He hadn't been answering his phone for the last week or two, so I went over to his apartment today to check on him. There was nobody there, but I found this note he had left for me: ...