Problem: Cancer and Scorpio are two of the water signs. What is the third?
Answer: pisces

Problem: In the pantomime of the same name, who is 'Aladdin's' mother?
Answer: widow twanky

Problem: What name is given to the negative electrode of an electrolytic cell?
Answer: cathode

Problem: Which acid is found in the leaves of Rhubarb?
Answer:
oxalic acid