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Daily Mental Sharpener - October 28, 2026

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Eight quick puzzles — patterns, deduction, spatial reasoning, mental math, and two timed memory challenges. About 7 minutes, one point per puzzle, score out of 8. Recreational only: this is a sharpener, not an IQ verdict.

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1. Find the missing number: 2, 7, 16, 29, 46, __ *
2. Every cyclist wears a helmet. Some commuters are cyclists. Which of these must be true? *
3. On a 4×4 board, a token starts in the top-left corner. It moves 2 steps right, 3 steps down, then 1 step left. Where does it end? *
4. A notebook costs $6. How much do 17 notebooks cost? *
5. Find the missing number: 3, 6, 11, 18, __ *
6. Five books — red, blue, green, yellow, purple — sit on a shelf left to right. Red is leftmost. Blue sits immediately right of red. Yellow sits immediately left of purple. Green sits rightmost. Which book is third? *
7. Memory challenge *

You will have 30 seconds to study the material. It will then disappear, and you will answer a question about it.

8. Memory challenge *

You will have 45 seconds to study the material. It will then disappear, and you will answer a question about it.

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