Read the following text carefully and answer questions 5, 6 and 7 :

Nelson Mandela was born on July 18, 1918 in South Africa. He had two nick names: Madiba and Black Pimpernel. From his boyhood, he saw the cruelty of the White to the Black. At that time, the White people hate the Black people. It was unbearable to the little Madiba. Becoming actively involved in the anti-apartheid movement in his 20s, Madiba joined the African National Congress in 1942. For 20 years, he directed a peaceful and non-violent defiance against the South African Government. For this, he was in the jail on Robben Island for 18 years. In 1993, Mandela and F.W. de Klerk were jointly awarded the Nobel Peace Prize. In 1994, Mandela was elected the South Africa's first Black President. In 2009, Mandela's birthday, July 8, was declared as 'Mandela Day' by the UN. Mandela died at his home in Johannesburg at the age of 95.