Verbal Reasoning - Mental Ability Questions

Select the related word/letters/number from the given alternatives.
30 : 16 :: 24 : ?

If 12 (20) 16 and 21 (35) 28, then what is value of A in 48 (80) A ?

Farhan travels 4 km in the north-east direction and then turns towards the south-east to travel another 3 km. How far is he now from his original position?

Arrange the given words in the sequence in which they occur in the dictionary.
1. Cadartrally
2. Caddisflies
3. Caducities
4. Caddisworms
5. Cadetships

Select the related word/letters/number from the given alternatives. Coins : Mint :: Bricks : ?

Each  of  the  following  questions has   four   statements.   Three   are   logically correct.  Some  of  which  may  look  factually absurd.  Ignore  this  absurdity  and  look  to  the logical   corrections.   Choose   the   statement which is wrong or doubtful:-

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.

RS, WX, ? , GH

Kamal starts walking from his home facing west direction. After walking 10 km he takes a right turn and walks another 10 km. He takes another right turn and walks 10 km to reach his school. How far (in km) and in which direction is he from his home?