Problem: Pedology is the science of what?
Answer: soils

Problem: What was the original name of the 'London Times' newspaper?
Answer: daily universal register

Problem: Ignis fatuus, a faintly luminous flame which hovers over marshy places is known as a Jack O' Lantern or what?
Answer: will o wisp

Problem: What is the world's largest herb
Answer:
banana plant