Solve these Riddles/Equations/Problems
755. When Miguel was 6 years old, his little sister, Leila, was half is age. If Miguel is 40 years old today, how old is Leila?
705. You are given 3 positive numbers. You can add these numbers and multiply them together. The result you get will be the same. Which are the numbers?
791. Caleb is 54 years old, and his father Franklin is 80. How many years ago was Franklin three times the age of his son Caleb?
791. Eggs are $0.12 a dozen. How many eggs can you get for a dollar?