Five colors are arranged: Red, Blue, Green, Yellow, and Orange. Red is not next to Blue. Green is next to Yellow but not next to Orange. Which color is in the second position?
In a family of six members A, B, C, D, E, and F, there are two males and four females. A is a teacher, B is a doctor, C is the mother of D, D is the son of E, and F is the sister of A. How many males are there in the family?