Problem: Which organic compound has the formula C4H10?
======
A: butane

Problem: The constellation 'Draco' is said to represent which mythical creature?
======
A: dragon

Problem: "Who used the pseudonym ""Bab""?"
======
A: w s gilbert

Problem: Clock, Klondike and Aces Up are variations of which group of card games?
======
A:
patience