1) A group of tourists is offered seats in a number of buses so that there were the same number of tourists in each bus. First the organizers tried 22 tourists in each bus, but 1 was left unseated. Then 1 bus left empty and the tourists used seats in the remaining buses. Find the number of buses and tourists if each bus has only 44 seats.

2) 2 cyclists started to ride at 8 am, one from A to B, and the other from B to A. Each rode at a constant speed along the same road and when each arrived at the terminal point, immediately turned back. They met for the first time at 11 am and each of them turned exactly once before they met for a second time. Find the time of their second meeting.

3) 1999 numbers are placed around the circumference of a circle. When any four successive numbers are added, the total is always 28. What are these 1999 numbers? Find all possibilities.