Among P, Q, R, S, and T each having a different weight, R is heavier than S but lighter than T. P is lighter than S. Who among them is the heaviest?

According to question,
R is heavier than S but lighter than T.
R > S But T > R
Then T > R > S
P is lighter than S.
S > P
Then
T > R > S, S > P ⇒ T > R > S > P
But information about Q is not given, Hence, either T or Q is the heaviest.