Indian-origin Kashmea Wahi has cracked Cattell III B Mensa, the largest and the oldest IQ test in the world, with an IQ higher than that of Albert Einstein and Stephen Hawking. Notably, Wahi's IQ score turned out to be 162, while Einstein and Hawking's IQ level was 160. Further, the maximum achievable score of the test for under-18s is 162.