Quizzing Live

What Reference Book Went On Sale For The First Time In 1955

Answer:
Guinness Book Of Records
The Density Of Which Substance Is Measured By A Lactometer?
How Many Types Of Seal Are Resident To African Shores?
What Colour Were Tom's Rather Revealing Shorts From Bb1, Which Were Later Auctioned For Charity?
Which Female Singer Had Two No.1 Hits In 1998 At The Age Of Fifteen?
What Was The First Group To Be Unplugged On Mtv On The 13th Of May, 1989?
What Is The Si Unit For Frequency?