Question

What is a locust who is the first democratic president of rsa

Answer 1

A  locust is a type of grasshopper.  They fly in swarms and can devastate whole fields of crops.  The first president of the Republic of South Africa was Nelson Mandela

Answer 2

Locus are a larger version of a grasshopper. When they breed they do it abundantly and they can cause serious crop damage when they fly in swarms. By the way this would be more of a science question.  ;)

Your second question is a history one:  I believe the answer is Nelson Mandela. He was the first democratic president of  the Republic of South Africa.  He was "sworn in" in 1994 at the age of 74 or 75 I believe.