Meet the smartest toddler in the USA who has been accepted as the youngest member of Mensa - with an IQ of 146. Two-year-old Kashe Quest can identify all 50 US states, recognise elements on the periodic table and is even learning to read, all before she's even started nursery. Parents Sukhjit Athwal and Devon Quest decided to test her IQ when they noticed their daughter's impressive memory. They were astonished her score was 146. The average IQ of an American is 98. The gifted tot had mastered the alphabet, numbers, colours and shapes before she was just 18-months-old, putting her miles ahead of kids her age.

Proud dad Devon said: “She approaches everything with passion and curiosity - that's just her disposition to the world. It's always been that way for the longest time; not only wanted to know what but the why. That's something really cool - how the world works, why it works that way and then she attempts to apply it.”

Most children her age are still learning how to count to ten, but Kashe, from Los Angeles, California, USA, can go up to 100. She also knows more than 50 signs in sign language and is learning Spanish. Devon said: "Parents all think that their children are great but when she was born the doctor had said wow her eyes are really attentive."