Find the odd one.
Aeroplane
Car
Taxi
Train
Quick short messages can be sent through
Letter
Telegram
Speed post
All the above
One of the most important method of improving public transport is
Construction of canals
Metro railways
Construction of high ways
None of the above
The printing machine was invented in the year
1223
1333
1443
1553
The Television was invented by
John Logie Baird
Guglielmo Marconi
John Gutenberg
Alexander Graham Bell
The long distance communication was revolutionised by the invention of
Printing machine
Radio
News papers
Telephones