If MISTAKE is coded as 9765412 and NAKED is coded as 84123, How are the following words coded ? DISTANT

A. 3765485

Ashish is heavier than Govind. Mohit is lighter than Jack. Pawan is heavier than Jack but lighter than Govind.
Who among them is the heaviest ? 

D. ASHISH

Choose analogous pair - Tree : Branches

A. RIVER : TRIBUTARIES

If MISTAKE is coded as 9765412 and NAKED is coded as 84123, How are the following words coded ? STAIN

D. 65478

Choose analogous pair - Staircase : Banisters

B. DECK : RAILINGS