Verbal Reasoning - Mental Ability Questions

From the given alternative words, select the word which cannot be formed using the letters of the given word:

CONCENTRATION

Find the odd word/letters/number from the given alternatives.

From the given alternatives, select the word which CANNOT be formed using the letters of the given word.

Premonition

R is P's father's nephew. Sis P's cousin but not the brother of R. How is S related to R?

Find the missing term in the following question:-

Select the missing number from the given responses

Select the missing number from the given options?

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
Millimetre, Micrometre, Nanometre, ?