I always must stress, I can never tell if questions are jokes or not. I will answer it seriously, though.
Cookie dough is made of eggs, sugar, butter etc.
Rotten eggs are not entirely safe to eat, and gone off butter is not nice. It really depends on how expired the cookie dough is to be perfectly honest. If it has green bits of mould hanging off of it, I wouldn't try and eat it. But, it shouldn't do you MUCH damage, just give you a tiny bit of a stomach cramp if it is really badly off. So I wouldn't worry, although, if you feel incredibly ill and unable to do certain things, contact your local GP for expert advice.
No, hence the word expired. It is unsafe to eat anything expired. Dispose of anything expired.
you could die or at the least throw up
Not usually, no.
Of course it is!
I wouldn't eat a cookie that has been in the same box with a pencil.
ni you can get realy sick
Tollhouse cookie dough is definitely safe to eat after cooking thoroughly into cookies. However, because Tollhouse cookie dough is made with raw eggs in the dough, there is a possibility that the raw cookie dough straight from the package could make you ill. There was an outbreak of Salmonellalinked to eatin raw cookie dough somewhere around 2009 or 2010.
It is generally safe to eat expired parmesan cheese as long as it does not show signs of spoilage such as mold or an off smell. However, the taste and quality may be compromised.
It is generally safe to eat expired butter as long as it has been stored properly and does not show signs of spoilage such as mold or a rancid smell. However, the taste and quality of the butter may be affected.
Yes, most Tinned/sealed food is safe to eat. The only time that it isn't safe to eat is if the "Use by date" has expired
It is safe to use an expired propane tank because it is a heat source and not an actual food. The only concern is if the tank is still safe to use without a risk of combusting.
You should not take any medications or dietary supplements that have expired.