Puzzle 1: You are given nine gold coins that look identical. You are told that one of them is fake, and that this coin weighs ...
With the CBSE Class 12 Math exam on March 9, 2026, approaching, students are urged to focus on conceptual clarity and smart revision. Teachers emphasize mastering calculus, core algebra, vectors, and ...
The SOF National Science Olympiad (NSO) is one of the most popular and challenging Olympiad exams for school students ...
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