Twins Krish and Keira Arora, from Hounslow, London, became members of the highly exclusive society just six months apart.
Krish took the IQ test in November at the age of 10, after he was inspired by his role model Young Sheldon – the main character in the Big Bang prequel series.
He scored a mind-boggling 162 – a result which makes him smarter than Albert Einstein, who is believed to have had an IQ of 160.
Meanwhile, Keira decided she wanted to give the Mensa admission a go after seeing that her brother had been accepted.
She became a member this May at the age of 11, thanks to her impressive score of 152.
Only people with IQs in the top 2% of the global population qualify for Mensa.
Krish said: “I was ecstatic when I got my result. Really, really happy.”
Keira added: “I wanted to try the test once Krish got his results. I felt a bit of pressure but I was pleased when I did it.”
Krish is a maths whizz and recently taught himself the Year 9 syllabus in just 22 days, despite only being in Year 6.
In his spare time, he enjoys robotics and coding, and reached Grade 8 piano after just two years of playing.
Keira on the other hand loves English, poetry, and music – and is the lead singer of her school band.
At the age of 11, her favourite book is Charlotte Bronte’s Jane Eyre – and she recently wrote a poem from the perspective of an AI tool.
Krish said: “My maths teacher gave me the syllabus for Key Stage 3 and I taught myself.
“I don’t want to go too far ahead though, such as into GCSEs and A-levels, because I want to stay with my friends.”
Keira agreed. She said: “I don’t find school academically challenging, but I still enjoy going as I get to spend time with my friends.”
The genius duo will in September be starting secondary school, with Krish headed off to elite grammar school Queen Elizabeth’s and Keira beginning her studies at highly-selective Tiffin Girl’s School.
Keira said: “I’m a bit scared because I’ve always been with Krish. But I’m also a bit relieved because it gets a little competitive.”
Although they are only just starting Year 7, Krish and Keira already have big plans for their futures.
Krish said: “I want to study maths at Cambridge and then do something maths-related, like an actuary.”
Keira said: “I want to study English and Law at Oxford, and then become a commercial lawyer.
“I think it will suit me because I’m good at negotiating, like with Krish over the TV remote.”
Parents Mauli and Nischal, who between them have degrees in computer science, electrical engineering, and business administration, admitted that there were some early signs of the twins’ intelligence.
Mum Mauli, who is a senior manager at an IT company, said: “We noticed earlier with Krish. His reading speed was far beyond his age and his spelling was very accurate.
“When we’d put on YouTube for him, he’d be watching maths tutorials – and by the age of four he was doing complex divisions.
“He also had a lot of patience. It’s rare for a four-year-old to sit still and do maths equations for half an hour.
“With Keira, she was such a lively and playful child that we didn’t really notice until later.
“But with her 11+ exams, we noticed her approach to complex questions – and then she started getting feedback on her writing.
“Teachers say she already writes like an author. She puts such emotion into her stories. It’s well beyond her age.”
Mauli said that she and dad Nischal, who used to be a management consultant but is now a private landlord, are very proud of their kids – although admittedly a little shocked by how everything has unfolded.
She said: “We’re quite speechless a lot of the time about everything.
“It does put pressure on us as parents as we want to make sure we keep exposing them to things that interest them.
“But it’s amazing for them as when we took them to their Mensa exam, they were the only kids. Everyone else was an adult.
“No one else in the family is a member of Mensa – and we’re not interested in taking the test.
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“Imagine if we didn’t pass!
“I’m not as brave as Keira was – trying after Krish got accepted.”
This July, Krish and Keira are heading to their first Mensa event – where they have been invited to meet with various admissions officers from Oxford and Cambridge University.
Their other summer plans include games of chess and monopoly, which they admit get a bit “competitive”, as well as a rewatch of their favourite film – the ‘twin classic’ The Parent Trap.
