That depends how long they have been unrefrigerated. If they've been sitting out for more than 2 hours, I wouldn't use them.
depends on how long you've left it like that. A few hours isn't a problem.
Generally, yes. You should be fine with it.
You have to wash them afterwards
No, it would not be safe. No meat, whether raw or cooked, should be left unrefrigerated for more than two hours.
The pastrami may not be safe and should be thrown out.
No, no meat is safe to eat if left out for 24 hours.
No. Cooked vegetables should be treated as any other potentially hazardous food and should be stored refrigerated.
The average recommendation for any food left out unrefrigerated is four hours. This is how long it takes bacteria to accumulate to high levels.
Mayonnaise is safe to eat if cooked or baked on foods. Mayonnaise can be used a a cake to give it a rich flavor.
No.
It is not safe to eat undercooked or raw meat of any kind while pregnant. you can eat certain types of sushi that are all vegetables or cooked fish not any uncooked or ones that contain high mercury levels. Tuna is a big no-no, cooked or raw it is very high in mercury.
Yes you can. Trust me as I'm a very experienced cook.