Vishu, Pooja, Vishakha, Rani and Ram are sitting in a line facing North. Pooja is third to the extreme right end. Vishu is second to the left of Pooja. Vishakha is to the right of Pooja. Rani is third to the right of Ram, who is the immediate neighbour of Vishu. Who is sitting in the middle?

Let there be 5 linear positions numbered 1 to 5 from left to right:
[1] [2] [3] [4] [5]

"Pooja is third to the extreme right end."

Counting from the right end (5 is 1st, 4 is 2nd, 3 is 3rd): Pooja occupies position 3.

_ , _ , Pooja , _ , _

"Vishu is second to the left of Pooja."

Position of Vishu = 3−2=1.

Vishu , _ , Pooja , _ , _

"Ram is the immediate neighbour of Vishu."

The only available adjacent space for Ram next to Vishu is position 2.

Vishu , Ram , Pooja , _ , _

"Rani is third to the right of Ram."

Position of Ram is 2. Position of Rani = 2+3=5.

Vishu , Ram , Pooja , _ , Rani

"Vishakha is to the right of Pooja."

The remaining position 4 goes to Vishakha.

Final Arrangement: Vishu (1), Ram (2), Pooja (3), Vishakha (4), Rani (5)

The person sitting exactly in the middle (position 3) is Pooja.