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Daily Mental Sharpener - October 19, 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: 1, 2, 4, 7, 11, 16, __ *
2. No cats are dogs. Some pets are cats. Which of these must be true? *
3. You face north. Turn 90° to your right, then turn 90° to your right again, then turn 180°. Which direction are you facing now? *
4. A bookstore runs a 'buy 3 for the price of 2' deal. Each novel normally costs $18. How much do 6 novels cost under the deal? *
5. Find the missing number: 5, 11, 23, 47, __ *
6. Five runners — Ash, Bo, Cy, Dee, Eli — finish a race in some order. Ash finishes ahead of Bo. Cy finishes right behind Ash. Eli finishes last. Dee finishes ahead of Bo but behind Cy. Who finishes 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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