The world's shortest IQ test — just three questions — has gone viral again and thousands are rushing to see if they are in the top 20 per cent.   The Cognitive Reflection Test, created in 2005 by MIT psychology professor Shane Frederick, has reappeared on TikTok, stumping many with its seemingly straightforward puzzles.   Frederick asked 3428 people the same three questions and found only 17 per cent of people got them all correct.   Another 33 per cent got them all wrong and the remainder could answer one or two correctly.

https://www.thehits.co.nz/the-latest/can-you-pass-the-world-s-shortest-iq-test-that-80-per-cent-of-people-fail/

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