1) Decaffeinated coffee is not totally caffeine free . It contains about 3 mg of caffeine .
2) You use over 70 muscles to say one word.
3) Traffic lights were used before the advent of the motorcar.
4) Duets sung by birds may sound harmonious to us but a study has found that some birds fight by singing .
5) A campaign to ban hotdogs from school menus due to health risks has sparked a PATRIOTISM row in the US.
6) The longest flight of a chicken is 13 seconds.