Shared on X by the account ‘Brainy Quiz’, the puzzle reads: "99% Failed ... While many struggled, only a few managed to crack the pattern and arrive at the correct answer.

Especially when mathematical elements are involved, these puzzles can become even more ... But after staring at it for a while, I think I’ve cracked the logic!” Some, however, were left ...

1. Chinese mathematicians say they have cracked century-old fluid mechanics puzzle Two young Chinese mathematicians working in the United States, along with an international collaborator ...