1... WHY?
Why are zero scores in tennis called 'love'?
BECAUSE
In France , where tennis became popular, the round zero on the scoreboard looked like an egg and was called 'l'oeuf,' which is French for 'the egg.' When tennis was introduced in the US, Americans (naturally), mispronounced it 'love.'
2... WHY?
Why is shifting responsibility to someone else called passing the buck'?
BECAUSE
In card games, it was once customary to pass an item, called a buck, from player to player to indicate whose turn it was to deal. If a player did not wish to assume the responsibility of dealing, he would 'pass the buck' to the next player.
3.. WHY?
Why are people in the public eye said to be 'in the limelight'?
BECAUSE
Invented in 1825, limelight was used in lighthouses and theatres by burning a cylinder of lime which produced a brilliant light. In the theatre, a performer 'in the limelight' was the Centre of attention.
4 ... WHY?
Why is someone who is feeling great 'on cloud nine'?
BECAUSE
Types of clouds are numbered according to the altitudes they attain, with nine being the highest cloud. If someone is said to be on cloud nine, that person is floating well above worldly cares.
These are great!