In salted boiling water with sunflower oil add farfalle and boil 10-15 minutes. Squeezing them in a colander and put them back on the stove, such as crushing feta cheese. In a medium deep dish we make box of farfalle with feta cheese. Top of the circle arrange sliced ​​cucumber and diced tomato. Boil the potatoes and also we cut them into cubes that application on tomato and cucumber (optional add salt and seasoning plant with sunflower oil). Mix mayonnaise and yogurt, add dill and garlic powder (it is desirable to be fresh dill) and pour this dressing salad. Finally, sprinkle with black pepper.