The problem: Answer a question about this article:
It seems to have been St Bernard of Clairvaux who, in the 12th century, explicitly raised the question of the Immaculate Conception. A feast of the Conception of the Blessed Virgin had already begun to be celebrated in some churches of the West. St Bernard blames the canons of the metropolitan church of Lyon for instituting such a festival without the permission of the Holy See. In doing so, he takes occasion to repudiate altogether the view that the conception of Mary was sinless. It is doubtful, however, whether he was using the term "conception" in the same sense in which it is used in the definition of Pope Pius IX. Bernard would seem to have been speaking of conception in the active sense of the mother's cooperation, for in his argument he says: "How can there be absence of sin where there is concupiscence (libido)?" and stronger expressions follow, showing that he is speaking of the mother and not of the child.
Who began to query the position of the conception of Mary following the 11th century ?
****
The answer: St Bernard of Clairvaux

The problem: Answer a question about this article:
"At 11 am Petrus Canisius Van Lierde as Papal Sacristan was at the bedside of the dying pope, ready to anoint him. The pope began to speak for the very last time: "I had the great grace to be born into a Christian family, modest and poor, but with the fear of the Lord. My time on earth is drawing to a close. But Christ lives on and continues his work in the Church. Souls, souls, ut omnes unum sint."[c] Van Lierde then anointed his eyes, ears, mouth, hands and feet. Overcome by emotion, Van Lierde forgot the right order of anointing. John XXIII gently helped him before bidding those present a last farewell.
Who was at the dying pope's bedside?
****
The answer: Petrus Canisius Van Lierde

The problem: Answer a question about this article:
With the Conference of Berlin of 1884, Portuguese Africa territories had their borders formally established on request of Portugal in order to protect the centuries-long Portuguese interests in the continent from rivalries enticed by the Scramble for Africa. Portuguese Africa's cities and towns like Nova Lisboa, Sa da Bandeira, Silva Porto, Malanje, Tete, Vila Junqueiro, Vila Pery and Vila Cabral were founded or redeveloped inland during this period and beyond. New coastal towns like Beira, Mocamedes, Lobito, Joao Belo, Nacala and Porto Amelia were also founded. Even before the turn of the 20th century, railway tracks as the Benguela railway in Angola, and the Beira railway in Mozambique, started to be built to link coastal areas and selected inland regions.
During what period were the Portugese Africa's cities founded or redeveloped?
****
The answer: Scramble for Africa

The problem: Answer a question about this article:
Birds sometimes use plumage to assess and assert social dominance, to display breeding condition in sexually selected species, or to make threatening displays, as in the sunbittern's mimicry of a large predator to ward off hawks and protect young chicks. Variation in plumage also allows for the identification of birds, particularly between species. Visual communication among birds may also involve ritualised displays, which have developed from non-signalling actions such as preening, the adjustments of feather position, pecking, or other behaviour. These displays may signal aggression or submission or may contribute to the formation of pair-bonds. The most elaborate displays occur during courtship, where "dances" are often formed from complex combinations of many possible component movements; males' breeding success may depend on the quality of such displays.
Visual communication among birds may involve what kind of displays?
****
The answer:
ritualised displays