Brain Test 1 Level 121
What should we put in place of the question mark
The diagram is supposed to look like the shifter of a car with a manual transmission. Usually the reverse gear is on the bottom right side, so the answer is “R”.

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.Recognize the diagram as a car gear shifter pattern, not a mathematical or alphabetical puzzle;
- 2.Recall that manual transmission reverse gear is typically at the bottom right position marked 'R';
- 3.Ignore the letters H and N as distractions; focus on the spatial arrangement resembling a gear stick.
Common mistakes
- 1.Thinking it's a math pattern and trying to calculate numbers from the diagram;
- 2.Looking for alphabetical patterns in the letters H, N, and R instead of recognizing the car gear layout;
- 3.Guessing random letters without realizing the diagram represents a manual transmission shifter.
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