The Malayalam literature who received the Jnanpith Award in 2007

 One among the four persons listed below never won the tittle 'Miss World'. Name the person. 

Among the following persons who was the recipient of Dada Saheb Phalke Award from Kerala? 

Who among the following literary figures of Kerala is not a recipient of Jnanpith Award 

In order to recognise and honour the writers of Malayalam Language and Literature, the Kerala Sahitya Academy is giving yearly awards to the eminent works in various branches of the language like poetry, drama, short story, novel, literary criticism, humour and translation. Among the following pairs which Kerala Sahitya Academy award is incorrectly matched? 

 National Science day is observed every year on February 28th. What is its significance?