Among seven sisters T, U, V, W, X, Y, and Z, all having different ages: U is elder than only four other sisters. V is elder than W. T is elder than Y. X is elder than only one person, who is Z (the youngest among all sisters). U is elder than T. Who is the eldest sister?

In a row of 53 students facing the north, Yaki is 19th from the right end. If Mosi is 24th to the left of Yaki, then what is Mosi's position from the left end of the line?

In a row of 53 people facing North, Anupama is 32nd from the right end. If Priya sits 18th from the right end, how many people sit between Anupama and Priya?