Raffle Tickets 2000 per Roll 50/50: Green

Is each roll 2000 pairs of tickets? Or 2000 individual tickets, making it 1000 usable tickets?

Is there a place to put name and phone number on back of ticket if customer does not need to be present to win?

I understand every ticket has a 6 digit number but eliminating the first 3 numbers, will they all start at 0 or 1? Meaning, 987001 or 453001?

please clarify the number of tickets. Are there 2000 pairs of tickets (4000 total tickets) or 1000 pairs of tickets (2000 total tickets)