In a race, Alex finished before Brian but after Charlie. David finished after Brian. Who finished first?

C. CHARLIE

Five friends, P, Q, R, S, and T, are ranked based on their scores. P has a higher score than Q but lower than R. S has a higher score than T but lower than P. Who has the lowest score?

C. T

Among five siblings, A is older than B but younger than C. D is younger than A but older than E. Who is the youngest sibling?

D. E

In a competition, M ranked higher than N but lower than O. P ranked lower than M but higher than N. Who is in the highest position?

C. O

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