if you pick random 3 numbers, will it ever pick the same combo twice (buy 100 tickets, will it ever pick 2 same combos and charge you 2 for 1?

From the best of my knowledge and experience, no.

It may be possible as its picking "random" numbers... But it would be very rare & only possible if u bought more then 1 of every possible combonation

basically the odds of picking the same exact combo if you buy random numbers
Match all 3 numbers of next drawing in the same exact order drawn to win Jackpot. (Max Winners: Unlimited, pot split) (Odds of winning: 1:42840)

basically the odds of picking the same three numbers but in different orders
Match all 3 numbers, out of order, and win 16.66% of the pot. (Currently: 3,227 Forum Gold) (Max Winners: 2) (Odds of winning: 1:7140)