What is referred to by 'any incarnation of vishnu'?

Based on the clue 'any group claiming enlightenment especially an 18t...', what is the answer? Based on the clue 'any group of armed forces personnel who carry or e...', what is the answer? Based on the clue 'any hedgehog could tell you that this is the place...', what is the answer? Based on the clue 'any hoofed mammal whether its a hog or a hippo', what is the answer? What is referred to by 'any indianan'? Based on the clue 'any insect of the order coleoptera', what is the answer? Based on the clue 'any irritable new york baseball player', what is the answer? What is associated with: any issued in the us since 1860 are valid to use on letters?