question: What is the answer: What (at 2015) is the only major nation of the world which charges income tax on its citizens working overseas?
answer: usa

question: What is the answer: What gas are the bubbles in fizzy pop filled with?
answer: carbon dioxide

question: What is the answer: Who wrote the best selling books Pillars of the Earth and World Without End?
answer: ken follett

question: What is the answer: What disease caused US president Franklin D Roosevelt to use a wheelchair?
answer:
polio