Good thinking to check general knowledge. But very easy.
This type of contest looks like that you are kidding. I request you to prepare the contest which has a level not too easy.
And prize of winners should also be reasonable. I mean your prize is greator than the voting power of post.
Anyway the answers are as follows.

1. Islamabad
2. Hockey 🏑
3. Gawaie dena k Allah Aik hai (Emaan ki gawaie)
4. K2
5. Iskandar Mirza