Meet Britain's 'smartest' siblings - who have a combined IQ of 314 and were accepted into Mensa at the age of 10 and 11. 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 two per cent of the global population qualify for Mensa.