IQ Test: 7 Questions That Only 3% of Adults Get All Right

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Written by Steeve

March 9, 2026

✅ Answer: Mary

“MARY’S father has 5 daughters.” Mary is the 5th daughter. Her name is right there in the question.

The pattern Nana-Nene-Nini-Nono is a trap. Your brain loves patterns so much that it generates “Nunu” before it processes the actual words. This is called pattern completion bias — your brain fills in what it EXPECTS rather than what’s actually there.

Score: __/6

One more. The hardest one.

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