Can i bring a bag lunch into the airport

Of course, just no liquids! And take it out of your carry-on bag and put it in the bin with your personal accoutrements (shoes, belt, ect...)

Yes, you can. Pack one for me as well.

I bought a bag of chips with no problem but honestly I don't know.

Yes, you can take food. No liquids though.

Yup, I just did it this week.

I've taken food into other airports just not liquids.