Problem: Which poisonous element can be either grey, yellow or black and combines with sulphur as realgar?
Answer: arsenic

Problem: A Hawaiian pizza is topped with ham and what else?
Answer: pineapple

Problem: The Shatt al-Arab waterway constitutes a part of the border between which countries?
Answer: iran and iraq

Problem: Charles Dickens was born in which English town in 1812?
Answer:
portsmouth