The most difficult Pakistan riddles

Water buffaloes provide 11% of the world's milk, which is much more than goats (2%, third place). Buffalo's milk contains higher levels of total solids, crude protein, fat than cow milk; it gives therefore more cheese, butter and other dairy products. The top buffalo milk producers are India and Pakistan.

The Indus rises in the Himalayas and flows southwards into the Arabian Sea. Other large rivers of the Indian subcontinent: Ganges or Brahmaputra, flow into the Bay of Bengal.

These two varieties of Hindustani language are nearly identical in basic structure and grammar, and at a colloquial level also in vocabulary and phonology. Mutual intelligibility decreases in literary and specialised contexts, which rely on educated vocabulary drawn from different sources; Hindi drawing its specialised vocabulary from Sanskrit, whilst Urdu (used on the Muslim court) does so from Persian and Arabic.

Islamabad was built during the 1960s to replace Karachi as Pakistan's capital. The city's master-plan divides the city into eight basic zones, including administrative, diplomatic enclave, residential areas, educational sectors, industrial sectors, commercial areas, and rural and green areas.

Currency of Pakistan is the "Pakistani rupee" (PKR). 1 Pakistani rupee is 0.0054 pound sterling.