During 734 BC the Phoenicians, a sea trading people from the north of ancient Canaan, built a small settlement on the natural harbor of Palermo. Some sources suggest they named the settlement "Ziz." It became one of the three main Phoenician colonies of Sicily, along with Motya and Soluntum. However, the remains of the Phoenician presence in the city are few and mostly preserved in the very populated center of the downtown area, making any excavation efforts costly and logistically difficult. The site chosen by the Phoenicians made it easy to connect the port to the mountains with a straight road that today has become Corso Calatifimi. This road helped the Phoenicians in trading with the populations that lived beyond the mountains that surround the gulf.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What road helped the Phoenicians trade with the Arabs?
Ah, so.. unanswerable

On 20 May 2011, Royal Dutch Shell's final investment decision for the world's first floating liquefied natural gas (FLNG) facility was finalized following the discovery of the remote offshore Prelude fieldlocated off Australia's northwestern coast and estimated to contain about 3 trillion cubic feet of natural gas equivalent reservesin 2007. FLNG technology is based on liquefied natural gas (LNG) developments that were pioneered in the mid-20th century and facilitates the exploitation of untapped natural gas reserves located in remote areas, often too small to extract any other way.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): On what developments was FLNG technology based?
Ah, so.. liquefied natural gas (LNG)

During the English Civil War the majority of Londoners supported the Parliamentary cause. After an initial advance by the Royalists in 1642 culminating in the battles of Brentford and Turnham Green, London was surrounded by defensive perimeter wall known as the Lines of Communication. The lines were built by an up to 20,000 people, and were completed in under two months. The fortifications failed their only test when the New Model Army entered London in 1647, and they were levelled by Parliament the same year.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Who did the Lines of Communication wall fail to prevent from coming into London?
Ah, so..
the New Model Army