Cook the corn - on the grill, in a stock pot, or use bagged corn. Remove from cob and set aside.
Place mayonnaise, greek yogurt, chili powder, cilantro, green onions, and lime juice into a large bowl; mix using a fork to combine.
Add the corn; fold in to combine. Cover and refrigerate at least 30 minutes to let flavors meld.
Serve with lime wedges.
