This book contains ten 50-question Sex IQ tests, for a total of 500 questions on sex topics including sexuality, intercourse, tantric sex, orgasms, ejaculation, G-spot, oral sex, masturbation, erotica, male reproductive system, female reproductive system, fertility, pregnancy, condoms, birth control, STDs, sexual behavior, sexual orientation, paraphilia, and sex and aging. The author developed a method to measure Sex IQ. Sex IQ is measured by multiplying the percent correct on a 50-question Sex IQ test by 200. A score of 50%, or 25 out of 50 questions correct, is a Sex IQ score of 100, which is considered an average score on a Sex IQ test. A score of 70%, or 35 out of 50 questions correct, is a Sex IQ score of 140, which is considered to be a score at the genius level on a Sex IQ test.