At Gold Puffin, we do a giveaway on the first Monday of every month. On that day, we upload a video to the Gold Puffin YouTube channel that explains how to take part. Full rules are always given in the description.
Giveaways are usually open for 10 days (until the Friday of the second week), and then the winner is announced in a new video on the 3rd Monday of the month.
The winner is usually the first person to get the correct answer to whatever the quiz or question is that month.