BRAIN TEASERS FOR DUMMIES

Problem: A person says: "Brothers and sisters, have I none, but that male's father is my father's son." That is he pointing at?e) You planted sunflower seeds as part of your back again garden. Daily, the quantity of flowers doubles. If it will take 52 days for the bouquets to fill the yard, what number of days would it take for them to fill 50 % th