Based on the clue 'at the age of 13 this performer topped the country...', what is the answer?

What is associated with: at the 8000 level on this quiz show the contestant was placed in an onstage isolation booth? Based on the clue 'at the academy plato nicknamed this student the re...', what is the answer? Based on the clue 'at the acropolis museum in athens youll find a who...', what is the answer? Based on the clue 'at the advanced age of 22 former olympian kim zmes...', what is the answer? Based on the clue 'at the age of 41 she competed in her fifth olympic...', what is the answer? Based on the clue 'at the age of 58 he became the youngest man electe...', what is the answer? Based on the clue 'at the age of 61 this actor made his film debut as...', what is the answer? What is associated with: at the age of 70 in 1776 i was one of 3 congressional commissioners to this nation?