Brain Test 1 answer

Brain Test 1 Level 307

Puzzle prompt

Which one tells the truth

Direct answer

With using some mathematics and a little dosage of your brain gray matters you will find out that if 1 of them is telling the truth, obviously 3 of them are lying; so she’s right: “three of us are liar”

Puzzle screenshot

walkthrough

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

version check

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.

Brain Test 1Level 307 Brain Test 4Level 307 All StarLevel 307

Strategy guide

1.Focus on the logical implication: if exactly one tells truth, then three must be liars;
2.The statement 'three of us are liar' is self-consistent if the speaker is the truth-teller;
3.Ignore visual distractions; solve using the given information about truth and lies only.

Common mistakes

1.Assuming the statement 'three of us are liar' must be false because it's spoken by one of them;
2.Trying to count liars based on visual clues rather than logical deduction about truth-tellers;
3.Believing multiple characters could be telling the truth, contradicting the puzzle's premise.