Brain Test 1 Level 140
This level currently has video help available. We are still verifying the exact in-game question text for this version.
Mouse is 4, Cat is 6, Upside down cat is 9, The answer is 17.

Follow the screen sequence
Use the images as a compact replay of the solving path. The text below each frame explains what should change.


Video walkthrough
Same number in other versions
Brain Test versions can reuse the same level number with a different puzzle. If the screenshot or question does not match your game, switch to the same number in another version or use the nearby level links.
Strategy guide
- 1.Notice the upside-down cat is the cat (6) rotated, making it 9;
- 2.First identify each symbol's value: mouse=4, cat=6, upside-down cat=9;
- 3.Add mouse (4) + cat (6) + upside-down cat (9) to get 17.
Common mistakes
- 1.Adding all numbers directly without considering the upside-down cat's value;
- 2.Missing that the upside-down cat equals 9 because 6 rotated is 9;
- 3.Forgetting to add the mouse (4) to the cat (6) and upside-down cat (9).
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