Question: What word is shorter when you add two letters to it?
Question: What occurs once in a minute, twice in a moment and never in one thousand years?
Answer: The letter M
Question: What can you catch but not throw?
Answer: A cold.
Question: What starts with the letter "t", is filled with "t" and ends in "t"?
Answer: A teapot
Question: What is so delicate that even mentioning it breaks it?