1) What do you call the kind of games, created as a promotion for a specific product/event (like, celebrating the announcement of a new movie), with giveaways offered to the persons who win (eg. find correct answers) ?
The organizers quite often draw lots among the correct answers.
Is it a "challenge", a "contest", or something else ?
2) Is there a specific word for the "official rules" of these games ? You know, all the usual yada yada... Terms and Conditions, maybe ?
1 I'd say 'promotion'
2 Rules/Terms and Conditions- no specific term- I think it would depend on the amount on offer.