If Juliet eats 5 watermelons, she would have twice as many as Donald did 5 days ago. Donald currently has 20 more watermelons than Kevin did 2 weeks ago. In those 5 days, Donald bought 4 watermelons and then ate half of his. In the past 2 weeks, Kevin ate 5 watermelons, bought 15, lost half, and then gained 4 times the amount. Give that Kevin has 20 watermelons currently, how many watermelons does Juliet have?