How long does it take for these to dry out once you open them?

They stay moist as long as you keep the package sealed. Windex wipes does a great job on your windows. I use mine on my glass TV stand.

Do these work on the inside of windshields?

Yes, Windex Glass and Surface Pre-Moistened Wipes can be used on the inside of windshields to clean and remove dirt, grime, and other common residues. These wipes are specifically designed for cleaning glass and other surfaces, including mirrors, appliances, countertops, and more. The Original formula of Windex wipes is safe to use on glass surfaces without leaving any streaks or residue behind. However, it is always recommended to follow the instructions on the product packaging and test the wipes on a small, inconspicuous area before using them on larger surfaces.

Are these wipes ammonia free? And do they have any scent to them?

Hi Melanie, Yes...The wipes are ammonia-free and a Multi-Surface Cleaner Lavender scent! (Based on company info)

Would these work on a glass top cook stove without leaving streaks?

Yes, I would try it. I have used it on several surfaces, like the black top cook stove at home and it leaves it very clean and shiny without streaks, at least with minimal ones if any.