A 3-year old boy from South Yorkshire, who became one of the youngest members of Mensa, can count up to 200 and can also name every country in the world.
Sherwyn Sarabi's IQ score of 136 puts him in the top one per cent of the world's population ranked in order of intelligence, the Daily Mail reported.
AdvertisementAnd the boy from Barnsley, has now become one of the youngest members of Mensa.
Sherwyn, who has a reading ability of a six year old, began speaking at the age of 10 months and was talking in sentences at 20 months.
By the age of two, he could read, count to 200, recognise and name countries, flags, planets in the solar system, parts of the body and internal organs.
His mother, Amanda Sarabi, 36, a former teacher, said that her son can also explain the function of each internal organ.
She said that Sherwyn's general knowledge is amazing and he doesn't even watch children's programmes, he watches the news.
The weather is his favourite, especially the world weather, he loves that, she said.
She first noticed his interest in learning when he was 18 months old but his intelligence seemed normal until other people pointed out how unusual it was.
Sherwyn has now joined the high-IQ society Mensa, which has only 100 members aged under 10 years old out of 22,000 members across Britain.