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Practice articles with answers

Short guides, worked examples and practice questions to build your problem-solving skills.

Brain Teasers · Class 9

10 Brain Teasers for Class 9 with Answers

Ten classic puzzles with clear working for every answer.

Published 25 October 2026

Number Series · Class 10

Number Series Questions for Class 10: Practice and Explanations

A method for finding any number-series rule, plus five practice questions.

Published 25 October 2026

Logical Reasoning · Class 11 and 12

Logical Reasoning Challenges for Class 11 and 12

How to test a conclusion with syllogisms, plus ordering problems with answers.

Published 25 October 2026

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