Explanation

1. Shoaib is taller than Ahsan, but shorter than Asad.
2. Zohair is the shortest.
3. Hamza is taller than Zohair, but shorter than Ahsan.

From point 1, we know Asad is the tallest among Shoaib, Ahsan, and himself.

From point 2, we know Zohair is the shortest.

From point 3, we know Hamza is between Zohair and Ahsan in terms of height.

So, the order of height from shortest to tallest is:

Zohair, Hamza, Ahsan, Shoaib, Asad

Therefore, the tallest person is Asad.