Diagonally
09-October-2023 Monday
From the authors “mathematics was never useful to me”
08-September-2023 Friday
Where are the pennies going all the time?
22-April-2023 Saturday
Diagonal brickwork engineer Banikovsky. 1908
20-July-2020 Monday
Once again about the similarities between pets and owners
21-July-2017 Friday
Drawing puzzle
14-April-2013 Sunday
Help me guess the word
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