Generate a correct and concise answer for the question based on the words in the context.
--------
Question: Context : The Battle of Vescera (modern Biskra in Algeria) was fought in 682 or 683 between the Berbers of king Caecilius and their Byzantine allies from the Exarchate of Carthage against an Umayyad Arab army under Uqba ibn Nafi (the founder of Kairouan). 
Question : The point in time of Battle of Vescera was when?

Answer: 682


Question: Context : Maine Gandhi Ko Nahin Mara (translated as I Did Not Kill Gandhi) is a 2005 excellent and best Indian film, directed by Jahnu Barua and produced by Anupam Kher. 
Question : Who was the star of Maine Gandhi Ko Nahin Mara?

Answer: Anupam Kher


Question: Context : In 2014 the Prime Minister of Poland, Donald Tusk, was elected President of the European Council. 
Question : Who was elected leader of Poland?

Answer:
Donald Tusk