Yusuf Shah’s friends in Leeds are always telling him he is very smart, but he wanted to find out for himself by taking the Mensa test.
He scored 162 – the maximum IQ for under-18s, putting him in the top one percent of all people.
Stephen Hawking is said to have scored 160 and Albert Einstein, who although never officially took the test, is believed to have got the same.
Yusuf celebrated his special achievement with a meal at Nando’s with his parents and brothers.
He said: ‘I have always wanted to know if I was in the top two percent of people who take the test.
‘It feels special to have a certificate for me and about me.’