Cauliflower should be safe for 1 week if stored in the refrigerator.
it will be 2weeks
Crab salad should keep safely in the refrigerator for three to four days.
about an hour or two.
Until it evaporates
6 months
1 week
Bananas do not keep well, a day maybe two.
3-5 days
2 hours
For at lest 2 weeks
They do have expiration dates
up to 48 hours