HE can name every country in the world and knows all the organs of the human body.

And that’s quite an achievement when you are just THREE.

Now a little boy who goes to Rastrick Independent School has become one of the youngest members of Mensa.

The youngster is among the top 1% of people in the world after tests revealed he had an IQ of 136 .

Head teacher Susan Vaughey said: “He’s a lovely little boy and he has fitted in really well.

“Like many gifted children, Sherwyn needs our help to ensure he gets a proper, rounded education.

“Many children with precocious learning abilities lack social skills so it is important we make sure he gets that sort of help from us.”

His mother, Amanda Sarabi, said she was really proud of her gifted son, who she described as “amazing”.

Sherwyn, who has a reading age of six, began speaking at the age of 10 months and was talking in sentences at 20 months.

By the age of two, Sherwyn could read, count to 200, recognise and name countries, flags, planets in the solar system, parts of the body and internal organs.

Mrs Sarabi, 36, of Barnsley, a former teacher, said: “His general knowledge is amazing. It’s not like talking to a three-year-old. He doesn’t watch children’s programmes, he watches the news.”