Question: how long do you grill corn on the cob in the big green egg?
Answer: Preheat grill to 350 degrees.
Husk corn.
Soak corn in a large bowl of cold water for 30 minutes.
Spray or brush lightly with vegetable oil.
Place corn in grill. ... 
Grill, turning corn every few minutes for 15-20 minutes until it has good grill marks and looks done.
Remove from grill, serve, salt to taste.