Logical Sequence of Words Questions

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

COMFORTABLE

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

Seed, Sapling, Plant, Flower, ?

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

Tribulations

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

ELABORATE

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

Gymnastic

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

PERSONALITY

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

LEGIBILITY

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

Acute angle, right angle, obtuse angle, ?