TASK DEFINITION: Given an trivia question precisely answer the question with a word/phrase/name. External resources such as Wikipedia could be used to obtain the facts.
PROBLEM: Whose autobiography was entitled A Long Walk to Freedom?

SOLUTION: nelson mandela

PROBLEM: Sophie, Mark and Jeremy are the three main characters in which UK Channel 4 television series?

SOLUTION: peep show

PROBLEM: Invar is an alloy chiefly consisting of iron and which other metallic element?

SOLUTION:
nickel