Q: Which is the densest planet in the solar system?
What is the answer?

A: earth

Q: In cookery Sauce Mousseline, Sauce Dijon & Sauce Foyot are all derivatives of which 'mother' sauce?
What is the answer?

A: hollandaise

Q: In 2013, 29% of what meat was found in Tesco's value beefburgers?
What is the answer?

A: horse

Q: What is the only song to top the UK charts with four different artists?
What is the answer?

A:
unchained melody