CMAT Queues and Ranks questions

Some students were sitting in a row. Sheela was sitting 12th from right and Veena was sitting 3rd from left. There were 15 students in between Sheela and Veena. How many students were sitting.

Ansh is taller than Akshita but shorter than Sharad. Akshita is shorter than Sharad but taller than Sneha. Who is the tallest one?

In the following alphabets, which letter is eight to the right of the fourteenth letter from the right end ?
ZABCDEFGHIJKLMNOPQRSTUVWXY