A previous question asked whether the map of the USA needs four colors.
Now, what about Canada? If you want to assign a colour to each province and territory, so that no two neighbours have the same colour, do you need four different colours?
When I was a young man, I knew the answer to that qu...
https://js13kgames.com/games/lock-puzzle/index.html
The link provides an online puzzle game of $16$ tiles in the form of a $4 \times 4$ matrix of which some entries are in the form of vertical tiles and other in the form of horizontal tiles arranged randomly by the system. Once you press a tile ...
Oh hang thee, I do, from the rafters above;
Though I'll often do my utmost to support thee from below.
Sometimes I'm wont to leave thee waiting in ears;
But as a rule, I'm a beast, telling thee to stop, and stop now.
What am I?
This could well be the most difficult crossword you do today!
Please note that the use of Google and other search engines is STRICTLY FORBIDDEN.
(Of course, I have no way of policing this, but if you do decide to cheat and comb the Internet for the answers then the letters in the shaded squares...
What are the next two numbers in series?
Six hundred and forty
Five thousand
Eight thousand
?
?
What is the next number? Is this a trick question?
Note: I am using the UK way of numbering that includes "and". Unlike us Americans who write many different ways :)
How may the following shark-fin-shaped Goal distribution
be cooked up with 38 ingredients
in a roll recipe R based on the roll sum
of two 6-sided dice with non-standard allotments of dots?
Goal: Shark fin distribution of results calculated by R from the sum
of two dice who...
In this position, White’s sole aim is to castle. But in order to do so, they must promote their pawn to a queen to force a Black bishop move. The 10 black kings represent where Black’s king can safely be put so that it can’t prevent the promotion.
On which square/s should the Black king be pla...