Q: What bird breed was used by coal miners to detect the presence of toxic gases in the mines?
What is the answer?

A: canary

Q: What type of natural substance is caoutchouc (pronounced kachook)?
What is the answer?

A: rubber

Q: Who is the 'Coalminer's Daughter'?
What is the answer?

A: loretta lynn

Q: Which Indian city, the capital of Rajasthan, is known as the 'Pink' city?
What is the answer?

A:
jaipur