Mexican Macaroni Salad

Name: Mexican Macaroni Salad
Ingredients: 2 ears fresh corn (husked); 500 g dry elbow macaroni; Salt & freshly ground pepper (to taste); 1 ½ cups red grape tomatoes (halved); 1 red pepper (diced); 2 stalks of celery (thinly sliced); 1 19 oz can black beans, drained and rinsed well; 2 small ripe avocados (diced); ½ cup Cotija cheese (crumbled or grated); ½ cup chopped red onion; 1 jalapeño (thinly sliced rings cut in half); ⅓ cup mayonnaise; ⅓ cup plain Greek yogurt (fat-free); 2 tablespoons fresh lime juice; 1 tablespoon Dijon mustard; ¼ cup finely minced fresh cilantro; 1 clove garlic (minced); 1 teaspoon chili powder