There’s 4 tablespoons in a quarter cup, so 8 would be half a cup of peanut butter. Seems like a lot, but I haven’t had peanut butter in years because of allergies

From my experience the numbers left of the colon are minutes and the numbers to the right are seconds. The seconds count down to 0 and then reset to 60 as the minute count decreases by 1 For whatever reason I actually get a tiny kick out of this weird behavior and almost always set my microwave for X minutes and 99 seconds (also almost never 100%power), my favorite part is adding 30 seconds with X:60< <70 so in theory it should be able to just go back to 9x but it always jumps up a minute and adds 30 instead. It knows 99 seconds is silly but still let’s me do it.