How long should Corn on the cobb boil?

5-10 minutes, depending on how tender you want it to be

If you are boiling frozen corn it only takes around five to seven minutes after they start boiling to cook them, a good idea is to melt two tablespoons of butter in a medium sized pot to give the...

it's about 20 min

Its takes at least 3 ½ to 4 hours on med-high heat

I just boil them until a small knife or fork easily pierces the skin and can easily be pulled out. It depends on how big your potatoes are. If they're big, try checking after 15 minutes and maybe...