Select the option in which the numbers do NOT share the same relationship as that shared by the given pair of numbers.
(23, 115, 207)

In a certain code language, "ARMS" is written as "5467" and "LIAR" is written as "1254". How is "SMALL" written in that code language?

A is the mother of B. B is the sister of C. D is the son of C. E is the brother of D. F is the mother of E. G is the granddaughter of A. H has only two children B and C.
Who is the mother of G?

7 : 30 :: 17 : ?

In a certain code language the word STANDING is written as NATSGNID. How will the word PRODUCES be written in that language?

In a certain code SISTER is written as RHRSDQ. How is UNCLE written in that code? 

Assertion (A): James Watt invented the steam engine.
Reason (R): It was invented to pump out the water from the flooded mines.

A man walks 10 km in north and turns right and walks 20 km. A gain he turns right and walks 50 km if he is 20 km west from the initial point. Now find that distance how much he walk from initial point.