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Today's Mental Sharpener - October 15, 2026

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Eight IQ-style puzzles for a fresh mental workout: patterns, deduction, spatial reasoning, mental math, and two timed memory challenges. For memory questions, start when ready, study the material, then answer after it disappears. One point per correct answer, eight points total. Allow about 7 minutes. This recreational quiz reports your quiz score, not a standardized IQ score.

Your answers are stored with your account. If you choose anonymous participation, your identity will not be displayed with the tool response.
1. Memory challenge *

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

2. Start at 3. Each step doubles the number and adds 1: 3, 7, 15, 31. What comes next? *
3. All cedar badges are square. No square badge is gold. Which statement must be true? *
4. You face east. Turn left 90 degrees, turn right 180 degrees, then turn left 90 degrees. Which direction are you facing? *
5. Four identical tickets and a $6 booking fee cost $38 in total. What do three tickets cost, without a booking fee? *
6. Memory challenge *

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

7. In each row, the third number equals the square of the first number minus the second. Rows: (3, 2, 7), (4, 5, 11), (5, 6, ?). What is missing? *
8. Four runners finish without ties. Maya finishes before Leo. Noor finishes after Leo but before Owen. Who finishes second? *
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