Brain Test 4 Level 156
Doctor Worry must make a new concoction according to the formula
1) Drag the liquids into the empty vial according to the table. 2) Blue needs some special treatment before put into the mix. 3) Drag the blue into the washing machine to shake it first.

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.Always wash blue liquid in the machine before mixing;
- 2.Follow the formula table precisely for correct proportions;
- 3.Shake blue liquid thoroughly before adding to vial.
Common mistakes
- 1.Directly adding blue liquid without washing first;
- 2.Ignoring the formula table and mixing liquids randomly;
- 3.Forgetting to shake the blue liquid in the washing machine.
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