The generally-accepted definition of genius (in the context of IQ scores) is a person who scores at least 3 standard deviations above the mean. A person who scores at least 145 on the Raven's Advanced Progressive Matrices test (which is used by the Mensa Singapore Admission Test) is a genius.

I personally scored 148 on the Mensa Singapore Admission Test, and I’d like to know how many members of Mensa Singapore scored higher than me, and whether anyone here achieved the top score of 160.