Martina H speaks Swiss-German, high German, Czech, English, French and a bit of Spanish. She is also now taking a business and english language correspondence course with Cambridge University. Her style of tennis was also really intelligent. I read too that as a kid she really enjoyed matchs and history at school and always got As especially in trigonometry!!
Id on't think there are any known IQ tests to players, but they are not very accurate becasue they only measure one type of intelligence which is based on logical thinking, hence it tends to be biased towards male intelligence.