*Has anyone ever looked for a needle in a haystack? *At what age does one become old? *Do you sweat when you are swimming? *How do I get a life? These are some of the classic questions tackled over the years by the Guardian's leading cult 'Notes & Queries' column. Eternally popular, the column has spawned 8 books, 2 television series and a website. Now, the first book for 5 years, this is the ultimate collection of the very best of the columns, providing informed and ingenious answers to brainteasers that range from the profound to the preposterous and the informed to the idiotic.