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Krypton isn’t like any other planet. Help the aliens with maths!
Create a nice atmosphere with Mathias’ candles!
Watch out! There’s an explosion of water lilies in the pond!
Cooking can be tricky when you’re camping. But it’s all good, because you can rely on math!
It’s hard to tell the exact time with a broken watch. But with two broken watches…
This arithmetical triangle can guess your card every time!
All it takes is a few operations, and you’ve found all the cards of the same suit!
Ah, predictions! With this mystery number, you can predict the future!
These jacks are special: they always face up!