As 'Potter' uses 'Clay' to make 'Pots' Similarly, 'Tailor' uses 'Cloth' to make Clothes.

First number is the addition of the last two As , 5 + 7 = 12
similarly , 4 + 3 = 7

As , similarly, 23 : 30 : 37 = 23 : 30 : 37
similarly, 6 : 13 : 20 = 6 : 13 : 20

As 'Inexperience' causes 'Errors' similarly, 'Carelessness' ,causes 'Losses'.

As study of 'Brain ' is called 'Neurology', similarly, 'study' of Body is called 'physiology'.

As 'Quack' is sound of 'Duck' similarly, 'Growl' is sound of dog.

'Pink' is obtained by the combination of 'Red' and 'White' and similarly 'Green' is obtained by the combination of 'Blue' and 'Yellow'.

As, 'Picture' is related to 'See' similarly the Book is related to 'read'.

Both the words are opposite in meaning to each other.

As, 'Swimming' takes place in 'river' similarly, Hiking' takes place on mountain.