Choose odd one out

Introducing a boy a Ankit said," He is the son of daughter of my grandfather's son". How is that boy related to Ankit?

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?

_k_m_kl_jk_m

Which of the following interchanges in signs will make the given equation correct?

17- 15 x 5 = 250

In a certain code language, "SPARROW" is written as "1326654", and "RING" is written as "6978". How is "RAINS" written in that code language?

Arrange the given words in the sequence in which they occur in the dictionary.

i. Shortage

ii. Shore

iii. Shamelessly

iv. Shadiness

v. Shallow

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

Millimetre, Micrometre, Nanometre, ?

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

250, 275, 301, ?