Problem: Which feminist book label was established by Carmen Callil and others in 1973?
Answer: virago

Problem: Name the big inflatable sphere in which thrill-seeking people roll down hills and on water?
Answer: zorb

Problem: The father of the modern assembly line, what American industrialist, born on July 30, 1863, was a prolific inventor with 161 patents to his name?
Answer: henry ford

Problem: What provides the staple diet of a koala?
Answer:
eucalyptus tree