Five people - P, Q, R, S, and T - are wearing different colored shirts: Red, Blue, Green, Yellow, and Black. P is wearing Red. Q is not wearing Blue or Green. R is wearing Yellow. S is wearing Black. What color shirt is T wearing?
In a group of five friends: Alice, Bob, Charlie, David, and Eva, Alice is taller than Bob but shorter than Charlie. David is shorter than Eva but taller than Bob. Who is the tallest among them?
In a family of six members A, B, C, D, E, and F, there are two married couples. A is a teacher and is married to B. C is the doctor and is the son of A. D is the daughter of B. E is the grandmother of C. Who is F?
In a family of six members A, B, C, D, E, and F, A is the mother of B. C is the father of D. E is the sister of B. F is the brother of A. How is D related to E?
A, B, C, D, and E are five different fruits. A is sweeter than B but less sweet than C. D is sweeter than E but less sweet than A. Which fruit is the least sweet?