What is referred to by 'agent 99'?

Based on the clue 'age of a sophomore horse its also the usual age of...', what is the answer? Based on the clue 'age range of an octogenarian', what is the answer? What is referred to by 'ageless wonderwilde picturescom'? What is referred to by 'agenda fairground fanfair'? Based on the clue 'agent k agent j jack jeebs', what is the answer? Based on the clue 'agent leigh steinberg wrote winning with integrity...', what is the answer? Based on the clue 'agents of this criminal group would laugh at agent...', what is the answer? Based on the clue 'agents to be undergo 15 weeks of training at the f...', what is the answer?