A pair of genius twins might be Britain's smartest siblings having been accepted into Mensa with a combined IQ of 314.

Krish and Keira Arora, both aged 11, have been enrolled into the exclusive international society after scoring incredibly highly on the IQ test.

To qualify for membership at Mensa you have to score in the top 2 per cent of the general population on a recognised intelligence test.

Maths genius Krish has an IQ of 162, which is believed to be higher than Albert Einstein's estimated score of 160.

He was the first of the pair to join Mensa after getting accepted last November at age 10, while his twin sister Keira - with an IQ of 152 - followed in his footsteps earlier this month, aged 11.