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Core Brain vs other IQ tests

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Honest head-to-head comparisons against the major IQ tests online — what each measures, how they score, and when to pick which.

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Which number completes the sequence: 2, 6, 12, 20, 30, ?

The general rule

Pause. Find out YOUR IQ before you keep reading.

Real online IQ tests have three signatures:

Anything that gives you a single number from a 5-minute test is entertainment, not measurement.

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