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Make an idea click.
Move beyond an answer. Explore visual reasoning puzzles and interactive challenges across all 6 subjects, with instant rule-based verification and step-by-step explanations.
What belongs in each mystery box?
Every mystery box holds the same value. Make the two sides balance.
0 of 7 challenge types explored at this stage
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Streaks count different challenges solved consecutively in this session and reset after an incorrect check. Repeating a solved question adds no points. Original rule-based practice. Age bands are guidance, not an assessment or curriculum certification.
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Runner A has a 28 km head start and moves at 16 km/h. Runner B chases in the same direction at 20 km/h. How many hours will it take Runner B to catch Runner A?
Use relative closing speed to calculate how long it takes a faster runner or vehicle to close a head start.
0 of 4 solved in this round
Featured, challenges & worksheets in Reasoning
Set overlap & Venn totals
Use inclusion-exclusion reasoning to find the total number of members across two overlapping sets.
Conditional probability tables
Calculate conditional probability from subgroup counts and express the result as a simplified fraction.