Fred has a puzzle. The instruction sheet, which is separate from the equation,simply says: "Make this equation true. You may ONLY draw ONE, PERFECTLY straight line". The equation is all alone on a blank piece of paper and reads: 5+5+5=550 There are 4 acceptable answers. You must get all...

1 - El-Guest 2 - Tom 3 - Gareth McCaughan 4 - Jaap Scherphuis 5 - ? So! I've tried to make it harder to distinguish the possibgilities, but there's still a tag that relates to everything. ten investigator joker spy pets seasons thief ...

Finni’s game: Person A thinks of a number (1 to 10). This number is called n. Person B says a number (1 to 10). This number is called x. Person A tells the difference of n and x. This difference is called u. Person B says a new number (1 to 10). This number is called y. Person A tells...

This picture is from the 50 trillion dollars challenge from the free ebook "Muko and the Secret". This one is already solved by a reader.