Logical Sequence of Words Questions

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

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

Dadabhai Naoroji, Bal Gangadhar Tilak, Lala Lajpat Rai, ?

A series is given, with one word missing. Choose the correct alternative from the given ones that will complete the series.

Smart, Aspire, Castle, Abysmal, Accost, ?

A series is given, with one word missing. Choose the correct alternative from the given ones that will complete the series.
nephew, anther, tenses, prunes, preens, ?

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
Asia, Africa, North America, ?

Rearrange the jumbled letters to make meaningful words and then select the one which is different.

In the following question, from the given alternative words, select the word which cannot be formed using the letters of the given word.
REASONABLE

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

PHOTOSYNTHETIC