Our missionFor usersFor creatorsFeaturesEarly accessDiscoverOpen the beta
Sample library. These profiles and videos are Circin's own demo content, written to show how the app works — they are not people who joined or videos anyone uploaded. Real creators get a page at circin.org/c/<name> as soon as they publish. Be one of the first →
Cognitive Edge / Logic and Puzzles
CIRCIN · PREVIEW The knights and knaves warm-up 0:57 · sample listing — there is no video file behind it

The knights and knaves warm-up

One always lies. One question saves you.

Cognitive EdgeLogic and PuzzlesAnalysis

Sample discussion

Written for the demo, not posted by anyone. Real comments live in the app.

@first_paycheck4h
my teacher sent us here and it holds up

Join the discussion in the Circin app — ask questions and get answers from the creator.

Related on Circin

1:04Lesson
Why this obvious riddle fools everyone
Deniz Rahimi · Logic and Puzzles
0:55Analysis
Is it still the same ship?
Kwame Osei · Philosophy
0:57Lesson
The trick your memory plays
Dr. Ivan Petrov · Psychology
0:42Learn Along
Why your brain rewards procrastination
Prof. Ade Balogun · Psychology
0:49Hands-On
The memory trick eyewitnesses fall for
Sam Rivera · Psychology
0:56Analysis
The trolley problem, minus the clichés
Elena Markovic · Philosophy
Keep exploring in Circin

The app is the real Circin, not this sample library — it is new, so there is not much in the feed yet, and it fills as creators publish.