Q: Which bird was on the reverse of the pre-decimal farthing of George VI and Elizabeth II?
What is the answer?

A: wren

Q: What is the capital of Saudi Arabia?
What is the answer?

A: riyadh

Q: On 19-20 October 1917 the largest fleet of what attempted and mostly failed to attack the UK?
What is the answer?

A: airships

Q: What is the common name for decompression sickness?
What is the answer?

A:
bends