Last updated: 2026-08-12
These Terms of Service ("Terms") govern your use of QED Night (the "Service"). By creating an account or otherwise using the Service, you agree to these Terms and to our Privacy Policy.
QED Night offers machine-verified logic puzzles and riddles, a daily challenge, an IQ-style reasoning test, a team-building generator, and multiplayer party games.
QED Night is free to use. Some features are marked "premium"; while a self-serve purchase flow is being built, premium access is granted by the operator only and is not sold. If that changes, this page will be updated first.
Register with accurate information and keep it up to date. Create and use only one account per person — accounts created to evade limits, restrictions, or scoring are not allowed. Keep your password secure and tell us if you suspect unauthorized access.
You agree not to:
We may suspend or terminate accounts that violate these rules.
Every logic puzzle published on QED Night is machine-verified to have exactly one solution before publication. User comments are moderated — you can report a comment, and we may remove content or restrict accounts that violate these Terms.
The IQ-style test is a timed reasoning-and-math challenge for practice and entertainment, not a professional or standardized intelligence test. Your score is informal and should not be used to make decisions about yourself or anyone else — see the disclaimer shown on the test's start page before every attempt.
The Service is provided "as is" and "as available," without warranties of any kind, express or implied.
To the maximum extent permitted by law, QED Night is not liable for indirect, incidental, or consequential damages arising from your use of the Service.
We may add, modify, or discontinue features, including premium features, at any time.
We may update these Terms from time to time. Material changes are announced on this page, with the "Last updated" date above revised accordingly.