Max jinked, after Lando dived. I think the stewards got it right, as Max got the 10 second penalty for forcing a car off track. Car to car contact was cause.
Terrible racing by Max if you play by current F1 rules. Double moves and reactions to Lando's' actions etc....pitiful. Norris should have won. But congrats to Russell. Take it any way you can get it.
Yes. They are allocated tires for Qual and the race. The requirement is to use 2 types in any race, sometimes yes they must switch to a previously used set.