In a set of vehicles: a car, a bicycle, a bus, and a motorcycle, which vehicle is classified differently from the others?

B. BICYCLE

In a race, A finishes before B, but after C. D finishes after A. Who finishes first?

C. C

Five friends - P, Q, R, S, and T - are compared based on their heights. P is taller than Q but shorter than R. S is shorter than T but taller than Q. Who is the tallest among them?

D. T

In a group of students, X scored higher than Y but lower than Z. W scored lower than X but higher than Y. Who has the highest score?

C. Z

Among A, B, C, and D, A is older than B but younger than C. D is younger than A. Who is the youngest?

D. D