Logical Sequence of Words Questions

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

Jurisprudence

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

Contemptuous

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
Narendra Modi, Manmohan Singh, Atal Bihari Vajpayee, ?

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

Hardship