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A puzzle related to mathematical facts and objects, whose solution needs mathematical arguments. General mathematics questions are off-topic but can be asked on Mathematics Stack Exchange.
6
votes
Accepted
Next palindrome date and time
The next palindrome date/time will be
This must be the next one, since
The previous palindrome date/time was
Just for completeness
2
votes
One-digit products in a row of numbers, base-N
The problem is not really about products, more about finding an arrangement of digits 1 to N-1 (for base N, since digit N does not exist in base N), that conforms to the criterion that any pair in the …
1
vote
10x10 divided into the most number of rectangles of different area
A solution with different sizes of rectangles.
14
votes
Accepted
Generating numbers with cubes
I really enjoy puzzles like these.
Bonus question:
Curiosity:
3
votes
Painting a 6x6 with 3 colours
The simple answer:
Reasoning
4
votes
Accepted
Locations on the Earth that are all separated by the same distance
The answer is
Explanation
3
votes
Rectangles formed from every tetromino, tromino and domino
Simlar to Dr Xorile, I think there are many solutions. Here are several:
3
votes
What is the largest number of cubes that can be cut?
An image representation of Gareth's answer