After cutting, about 2 weeks.
It isn't nutritous
it can stay fresh for 2 weeks
For best taste cauliflower should be eaten within 5-7 days of being placed in the fridge. Cauliflower can be kept refrigerated for 1-3 weeks if stored properly. If it discolors discard it.
Forever
It will stay fresh for some hours. Not too long. So it depends how long the fridge been off. Too long is bad.
cod will stay fresh forever if you freeze it in a air tight bag.
i would say brownies stay fresh for about 3-5 days if they are in a sealed container.
Weed stays fresh for a long time. You can put it in a plastic bag to keep it fresh for a long time or you can also freeze it.
two days
i don't think it will help the lifespan of the flowers
two days
up to the use-by date