541. What was the mascot for the 2012 Olympic Games held in London?
Wenlock
542. Which pair of metals constitutes the lightest metal and the heaviest metal, respectively?
Lithium and osmium
543. Why is the date April , 1930 known in Indian History?
Dandi March by Mahatma Gandhi
544. What happens, When water is heated from 0°C to 10°C the volume of water?
First decreases then increases
545. Greatest of the Pyramids was the Great Pyramid at Giza built by ?
Pharoh Khufu
546. Who is the inventor of Rubber (latex foam)?
Dunlop Co.
547. In Russia the October Revolution happened on?
7-Nov-17
548. Kunchan Memorial is situated in?
Lakkidi
549. Organization Of Economic Co-Operation & Development (OECD) was established on ?
30-Sep-61
550. Which One feature is distinguishing the Rajya Sabha from the vidhan Parishad?
Indirect election