Did the same six numbers ever come out twice?

Answer 1

Lacking any unmentioned specific limitations in the rather vague question; Yes, eventually. Even in a 'random' string of numbers, any six consecutive numbers will eventually occur again, assuming the string of numbers is sufficiently long (such as in the digits of pi). Another example: Six dice, each one with its 6 surfaces numbered 1 to 6, when thrown will give six numbers facing upwards. That same combination (or sequence) of six numbers will eventually appear again if the 6 dice are thrown a sufficient number of times.