Choose or find odd number pair - (6 - 15) , (21 - 43) , (25 - 51) , (29 - 59)

A. 6 - 15

Choose or find odd word - Mermaid , Sphinx , Unicorn , Dinosaur

D. DINOSAUR

Complete analogous pair - Market : Demand : : Farming : ?

B. MONSOONS

In a certain code language, '526' means 'sky is blue' ; '24' means 'blue colour' and '436' means 'colour is fun'. Which digit in that language means 'fun' ?

C. 3

Complete analogous pair - War : Death : : Smoke : ?

B. POLLUTION