(News.com.au) A 12-YEAR-OLD girl has beaten great minds including Stephen Hawking and Albert Einstein to get the maximum Mensa IQ test score.
British schoolgirl Lydia Sebastian joined the 1 per cent of those who have sat the exam who have obtained the highest mark of 162, putting her in the top 99.9th percentile of the population.
Lydia, from Essex, described the fiendishly difficult intelligence test as "easy", according to Cascade news agency. She completed the 150-question Cattell III B paper, which primarily measures verbal reasoning ability, during her school holidays.
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"At first, I was really nervous but once I started, it was much easier than I expected it to be and then I relaxed," she said. "I gave it my best shot."